FH: 00197185 Dichonema sericeum (Swartz) Montagne Ecuador: Galapagos Province Indefatigable Island [Isla Santa Cruz], on w... J. T. Howell 4 1932-5-10
FH: 00455320 Niebla combeoides (Nylander) Rundel & Bowler Mexico: [data not captured] J. T. Howell 1932-8-17
FH: 00455390 Niebla homalea (Acharius) Rundel & Bowler USA: California [data not captured] J. T. Howell 1932-3-13
FH: 00455392 Niebla homalea (Acharius) Rundel & Bowler USA: California [data not captured] J. T. Howell 1932-3-13
FH: 00469250 Parmotrema perforatum (Acharius) A. Massalongo Mexico: [data not captured] J. T. Howell 1932-3-27
FH: 00492352 Parmotrema perlatum (Hudson) M. Choisy Mexico: Colima Socorro Island: [no additional data] J. T. Howell 1932-3-26
FH: 00197405 Physcia aegialita (Afzelius ex Acharius) Nylander Mexico: Colima Clarion Island: summit J. T. Howell 19 1932-3-23
FH: 00472361 Physcia cascadensis H. Magnusson Mexico: [data not captured] J. T. Howell 1932-3-22
FH: 00472016 Physcia howellii Linder Mexico: [data not captured] J. T. Howell 1932-3-27
FH: 00472361 Physcia phaea (Tuckerman) J. W. Thompson Mexico: [data not captured] J. T. Howell 1932-3-22
FH: 00197405 Physcia picta (Swartz) Nylander Mexico: Colima Clarion Island: summit J. T. Howell 19 1932-3-23
FH: 00259147 Psorotichia squamulosa Zahlbruckner Mexico: Revillagigedo Islands, summit of Clarion Isl... J. T. Howell 20 1932-3-23
Aizoaceae GH: 00037492 Mollugo crockeri J. T. Howell Ecuador: Galapagos Province Crevices of lava near shore, Sullivan Bay, J... J. T. Howell 10094 1932-6-14
GH: 00037494 Mollugo floriana gypsophiloides J. T. Howell Ecuador: Galapagos Province Middle eastern part of Duncan [Pinzon] Islan... J. T. Howell 9828 1932-6-7
GH: 00037496 Mollugo insularis J. T. Howell Ecuador: Galapagos Province Black Beach, Charles [Santa Maria] Island J. T. Howell 9378 1932-5-19
Amaranthaceae GH: 00036955 Alternanthera filifolia margaritacea J. T. Howell Ecuador: Galapagos Province Albemarle [Isabela] Island, Iguana Cove J. T. Howell 9416 1932-5-21
Apiaceae GH: 00424286 Lomatium insulare (Eastwood) Munz USA: California San Nicolas Island J. T. Howell 8207 1932-3-12
Apocynaceae A: 02382483 Plumeria rubra Linnaeus Costa Rica: Braxilito Bay J. T. Howell 10191 1932-7-2
A: 02382482 Plumeria rubra Linnaeus Mexico: Nayarit Maria Madre; Flora of the Tres Marias Island... J. T. Howell 10493 1932-7-26
A: 02383312 Rauvolfia tetraphylla Linnaeus Nicaragua: East base of Coseguina Volcano J. T. Howell 10257 1932-7-6
Asteraceae GH: 00414562 Blepharizonia plumosa (Kellogg) Greene USA: California 1.5 miles west of Tesla J. T. Howell 10839 1932-10-16
GH: 00427968 Cirsium fontinale (Greene) Jepson USA: California Crystal Springs Lake J. T. Howell 10852 1932-10-19
GH: 00414352 Coreopsis gigantea (Kellogg) H. M. Hall USA: California San Nicolas Island J. T. Howell 8220 1932-3-13
GH: 00002556 Delilia repens (Hooker f.) Kuntze Ecuador: Galapagos Islands: James Bay, James Island J. T. Howell 9635 1932-6-4
GH: 00002556 Elvira atripliciformis J. T. Howell Ecuador: Galapagos Islands: James Bay, James Island J. T. Howell 9635 1932-6-4
GH: 00002556 Elvira repens (Hooker f.) B. L. Robinson Ecuador: Galapagos Islands: James Bay, James Island J. T. Howell 9635 1932-6-4
GH: 00037698 Grindelia humilis pubescens Steyermark USA: California Upper edge of tidal flat, Cuttings Wharf on ... J. T. Howell 10805 1932-10-8
GH: 00037698 Grindelia stricta angustifolia (A. Gray) M. A. Lane USA: California Upper edge of tidal flat, Cuttings Wharf on ... J. T. Howell 10805 1932-10-8
GH: 00417698 Grindelia stricta platyphylla (Greene) M. A. Lane USA: California mouth of Waddell Creek J. T. Howell 10862 1932-10-19
GH: 00414562 Hemizonia plumosa (Kellogg) A. Gray USA: California 1.5 miles west of Tesla J. T. Howell 10839 1932-10-16
GH: 00589319 Pectis glabra calvescens J. T. Howell Ecuador: Galapagos Islands, Conway Bay, Indefatigable... J. T. Howell 9870 1932-6-8
GH: 00589320 Pectis hookeri stellulata J. T. Howell Ecuador: Galapagos Islands, Jarvis Island J. T. Howell 9740 1932-6-6
GH: 00589319 Pectis subsquarrosa (Hooker f.) Schultz Bipontinus Ecuador: Galapagos Islands, Conway Bay, Indefatigable... J. T. Howell 9870 1932-6-8
GH: 00589320 Pectis subsquarrosa (Hooker f.) Schultz Bipontinus Ecuador: Galapagos Islands, Jarvis Island J. T. Howell 9740 1932-6-6
GH: 00011800 Scalesia crockerii J. T. Howell Ecuador: Galapagos Province North Seymour Island J. T. Howell 9992 1932-6-11
Bartramiaceae FH: 00824922 Philonotis fontana (Hedwig) Bridel USA: California [data not captured] J. T. Howell 1932-10-9
Boraginaceae GH: 00094695 Coldenia galapagoa J. T. Howell Ecuador: Galapagos Province Conway Bay, Indefatigable Island [Santa Cruz... J. T. Howell 9862 1932-6-8
GH: 00094698 Coldenia nesiotica J. T. Howell Ecuador: Galapagos Province Bartholomew Island J. T. Howell 10059 1932-6-14
GH: 00233550 Cordia anderssoni Gürke Ecuador: Galapagos Province Academ Bay, Indefatigable Island. (Santa Cru... J. T. Howell 9075 1932-5-4
GH: 00244020 Cordia revoluta Hooker f. Ecuador: Galapagos Province 5 miles northeast of Webb cove, Albemarle Is... J. T. Howell 9465 1932-5-23
Bromeliaceae GH: 02546011 Bromelia pinguin Linnaeus Costa Rica: Port Parker J. T. Howell 10239 1932-7-4
GH: 01817459 Tillandsia circinnata Schlechtendal Costa Rica: Port Parker J. T. Howell 1932-7-4
Bryaceae FH: 00798054 Bryum argenteum Hedwig Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1932-3-17
FH: 00798385 Bryum caespiticium Hedwig Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1932-3-17
Burseraceae GH: 00044391 Bursera howellii Standley Costa Rica: Port Parker J. T. Howell 10244 1932-7-4
Cactaceae GH: 01874752 Cereus nesioticus K. Schumann Ecuador: Galapagos Province 5 miles ne. of Webb Cove, Albemarle I. J. T. Howell 9456 1932-5-22
GH: 01874753 Cereus nesioticus K. Schumann Ecuador: Galapagos Province Southeast side, Narborough Island J. T. Howell 9631A 1932-6-1
GH: 01874754 Cereus nesioticus K. Schumann Ecuador: Galapagos Province Southeast side, Narborough Island J. T. Howell 9631 1932-6-1
GH: 01875345 Jasminocereus thouarsii (F. A. C. Weber) Backeberg Ecuador: Galapagos Province Sullivan Bay, James Island J. T. Howell 10007 1932-6-13
GH: 01875346 Jasminocereus thouarsii (F. A. C. Weber) Backeberg Ecuador: Galapagos Province near Post Office Bay, Charles Island J. T. Howell 8847 1932-4-24
GH: 01875347 Jasminocereus thouarsii (F. A. C. Weber) Backeberg Ecuador: Galapagos Province 5 imles ne. of Webb Cove, Albemarle Island J. T. Howell 9457 1932-5-22
GH: 01677382 Opuntia echios J. T. Howell Ecuador: Galapagos Province Near Villamil, Albemarle Island J. T. Howell 8962 1932-4-27
GH: 01677384 Opuntia echios J. T. Howell Ecuador: Galapagos Province Conway Bay, Indefatigable Island J. T. Howell 9848 1932-6-8
GH: 01677385 Opuntia echios J. T. Howell Ecuador: Galapagos Province Middle western part, South Seymour Island J. T. Howell 9919 1932-6-10
GH: 01677394 Opuntia galapageia Hemsley Ecuador: Galapagos Province Sullivan Bay, James Island J. T. Howell 10006 1932-6-13
GH: 01677399 Opuntia helleri K. Schumann ex B. L. Robinson Ecuador: Galapagos Province Near Darwin Bay, Tower Island J. T. Howell 10100 1932-6-15
GH: 01677400 Opuntia helleri K. Schumann ex B. L. Robinson Ecuador: Galapagos Province Near Darwin Bay, Tower Island J. T. Howell 10101 1932-6-15
GH: 01677401 Opuntia helleri K. Schumann ex B. L. Robinson Ecuador: Galapagos Province Near Darwin Bay, Tower Island J. T. Howell 10099 1932-6-15
GH: 01677403 Opuntia insularis Stewart Ecuador: Galapagos Province Tagus Cove, Albemarle Island J. T. Howell 9516 1932-5-24
GH: 01677406 Opuntia megasperma J. T. Howell Ecuador: Galapagos Province Gardner Island near Hood Island J. T. Howell 8784 1932-4-22
GH: 01677407 Opuntia megasperma J. T. Howell Ecuador: Galapagos Province Black Beach, Charles Island J. T. Howell 9362 1932-5-16
GH: 01677408 Opuntia megasperma J. T. Howell Ecuador: Galapagos Province Black Beach, Charles Island J. T. Howell 9361 1932-5-16
Caliciaceae FH: 00197405 Dirinaria aegialita (Afzelius ex Acharius) B. J. Moore Mexico: Colima Clarion Island: summit J. T. Howell 19 1932-3-23
FH: 00472094 Dirinaria aegialita (Afzelius ex Acharius) B. J. Moore Mexico: [data not captured] J. T. Howell 18 1932-3-23
FH: 00197405 Dirinaria confusa D. D. Awasthi Mexico: Colima Clarion Island: summit J. T. Howell 19 1932-3-23
Crassulaceae GH: 01987532 Dudleya linearis Britton & Rose Mexico: Baja California Norte South Bay, Cedros Island J. T. Howell 10709 1932-8-17
Cryphaeaceae FH: 00787203 Bestia breweriana (Lesquereux) Grout USA: California [data not captured] J. T. Howell 1932-10-9
Euphorbiaceae GH: 00246255 Euphorbia guadalupensis J. T. Howell Mexico: Baja California Norte Guadalupe Island: Melpomone Cove J. T. Howell 8331 1932-3-18
GH: 00246255 Euphorbia pondii Millspaugh Mexico: Baja California Norte Guadalupe Island: Melpomone Cove J. T. Howell 8331 1932-3-18
A: 00244125 Jatropha cinerea Müller Argoviensis Mexico: Baja California Sur Cape San Lucas J. T. Howell 10606 1932-8-6
A: 00244125 Jatropha moranii Dehgan & G. L. Webster Mexico: Baja California Sur Cape San Lucas J. T. Howell 10606 1932-8-6
Fissidentaceae FH: 00060788 Fissidens howellii E. B. Bartram Ecuador: Galapagos Province Indefatigable Island, above Fortuna inthe ra... J. T. Howell 21 1932-5-9
Funariaceae FH: 00487445 Funaria bolanderi (Lesquereux) Holzinger USA: California [data not captured] J. T. Howell 1932-3-13
FH: 00487449 Funaria bolanderi (Lesquereux) Holzinger USA: California [data not captured] J. T. Howell 1932-3-13
FH: 00557405 Funaria hygrometrica Hedwig Mexico: [data not captured] J. T. Howell 3 1932-3-17
Grimmiaceae FH: 00487823 Grimmia lisae De Notaris Mexico: [data not captured] J. T. Howell 1932-3-17
FH: 00487841 Grimmia lisae De Notaris USA: California [data not captured] J. T. Howell 1932-10-9
FH: 00545520 Grimmia pulvinata (Hedwig) Smith Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1932-3-17
Hedwigiaceae FH: 00919602 Pseudobraunia californica (Lesquereux) Brotherus USA: California [data not captured] J. T. Howell 1932-10-9
Hypogymniaceae FH: 00450976 Hypogymnia physodes (Linnaeus) Nylander Mexico: [data not captured] J. T. Howell 16 1932
FH: 00450977 Hypogymnia physodes (Linnaeus) Nylander Mexico: [data not captured] J. T. Howell 12 1932
Linaceae GH: 01248605 Linum harlingii Eliasson Ecuador: Galapagos Province Tagus Cove Mt., Albemarle Island. J. T. Howell 9541 1932-5-25
Malvaceae GH: 00052940 Malvastrum dimorphum J. T. Howell Ecuador: Galapagos Province Indefatigable [Santa Cruz] Island, Academy B... J. T. Howell 9294 1932-5-13
GH: 00052940 Malvastrum tomentosum tomentosum Ecuador: Galapagos Province Indefatigable [Santa Cruz] Island, Academy B... J. T. Howell 9294 1932-5-13
Nyctaginaceae GH: 00376139 Abronia maritima Nuttall ex S. Watson USA: California San Nicolas Island J. T. Howell 8230 1932-3-13
Orchidaceae GH: 01941412 Epipactis gigantea Douglas ex Hooker Mexico: Baja California Norte Ensenada: [no additional data] J. T. Howell 10755 1932-8-22
Orthotrichaceae FH: 00898319 Orthotrichum rivulare Turner USA: California [data not captured] J. T. Howell 1932-10-9
Pertusariaceae FH: 00471017 Pertusaria bispora Farlow ex Linder Mexico: Socorro Island J. T. Howell 46 1932-3-27
FH: 00471018 Pertusaria bispora Farlow ex Linder Mexico: Socorro Island J. T. Howell 46 1932-3-27
FH: 00471017 Pertusaria leioplaca bispora Farlow ex A. Stewart Mexico: Socorro Island J. T. Howell 46 1932-3-27
FH: 00471017 Pertusaria thiospoda C. Knight Mexico: Socorro Island J. T. Howell 46 1932-3-27
FH: 00471018 Pertusaria thiospoda C. Knight Mexico: Socorro Island J. T. Howell 46 1932-3-27
Piperaceae GH: 01984373 Peperomia nigropunctata Miquel Costa Rica: Wafer Bay, Cocos Island J. T. Howell 10168 1932-6-28
GH: 01979268 Piper amalago Linnaeus Mexico: Colima Manzanillo J. T. Howell 10295 1932-7-18
GH: 01979368 Piper amalago Linnaeus Nicaragua: East base of Coseguina Volcano J. T. Howell 10276 1932-7-7
Poaceae GH: 00023089 Aristida tenuifolia Hitchcock Mexico: Colima Ridge above Sulphur Bay, Clarion Island, Rev... J. T. Howell 8361 1932-3-23
GH: 00023090 Aristida vaginata Hitchcock Mexico: Colima North anchorage, Socorro Island, Revillagige... J. T. Howell 8448 1932-3-29
GH: 00024219 Paspalum galapageium Chase Ecuador: Galapagos Province 3 miles south of Equator, east side, Albemar... J. T. Howell 9612 1932-5-30
GH: 00024220 Paspalum galapageium minoratum Chase Ecuador: Galapagos Province Academy Bay, Indefatigable [Santa Cruz]Islan... J. T. Howell 9042 1932-5-2
GH: 00024226 Paspalum redundans Chase Ecuador: Galapagos Province North side, Indefatigable [Santa Cruz] Islan... J. T. Howell 9902 1932-6-9
GH: 00024555 Trisetum howellii Hitchcock Ecuador: Galapagos Province Mount Crocker, Indefatigable [Santa Cruz] Is... J. T. Howell 9208 1932-5-9
Polygalaceae GH: 00027005 Polygala sancti-georgii oblanceolata J. T. Howell Ecuador: Galapagos Province Jervis [Rabida] Island J. T. Howell 9737 1932-6-6
Polygonaceae GH: 02043985 Eriogonum vimineum Douglas ex Bentham USA: California [data not captured] J. T. Howell 10789 1932-9-2
GH: 01962008 Eriogonum vimineum Douglas ex Bentham USA: California [data not captured] J. T. Howell 10785 1932-9-18
Porellaceae FH: 00506033 Madotheca navicularis (Lehmann & Lindenberg) Nees USA: California [data not captured] J. T. Howell 1932-10-19
Portulacaceae GH: 00040302 Portulaca howellii (D. Legrand) Eliasson Ecuador: Galapagos Province North Seymour Island J. T. Howell 9979 1932-6-11
GH: 00040302 Portulaca lutea howellii D. Legrand Ecuador: Galapagos Province North Seymour Island J. T. Howell 9979 1932-6-11
Pottiaceae FH: 00301858 Barbula brachyphylla Sullivant USA: California San Nicolas Island, California J. T. Howell 10 1932-3-13
FH: 00539812 Crossidium desertorum Holzinger & E. B. Bartram USA: California [data not captured] J. T. Howell 1932-3-13
FH: 00301858 Didymodon vinealis brachyphyllus (Sullivant) R. H. Zander USA: California San Nicolas Island, California J. T. Howell 10 1932-3-13
FH: 00919407 Pottia fosbergii E. B. Bartram Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1932-3-17
FH: 01147169 Tortula brevipes (Lesquereux) Brotherus Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1932-3-17
FH: 01135977 Tortula ruralis (Hedwig) G. Gaertner, B. Meyer & Scherbius Mexico: Baja California Norte Guadalupe Island: [data not captured] J. T. Howell 1932-3-17
Psoraceae FH: 00475023 Psora crenata (Taylor) Reinke Mexico: Baja California Norte Guadalupe Island: [no additional data] J. T. Howell 1932-3-17
FH: 00475081 Psora globifera (Acharius) A. Massalongo Mexico: Colima Socorro Island: [no additional data] J. T. Howell 1932-3-26
FH: 00474954 Psora sp. Mexico: Colima Socorro Island: [no additional data] J. T. Howell 1932-3-26
Radulaceae FH: 00509589 Radula bolanderi Gottsche ex Stephani USA: California [data not captured] J. T. Howell 1932-10-19
Roccellaceae FH: 00394153 Dendrographa leucophaea (Tuckerman) Darbishire USA: California [data not captured] J. T. Howell 1932-3-13
Rosaceae A: 00345955 Rosa californica Chamisso & Schlechtendal USA: California Bank of slough draining Kenwood Marsh J. T. Howell 10773 1932-9-18
Solanaceae A: 00813294 Lycium andersonii A. Gray Mexico: Baja California Sur Turtle Inlet, Magdalena Bay J. T. Howell 10644 1932-8-10
A: 00402609 Lycium californicum Nuttall ex A. Gray USA: California San Nicolas Island J. T. Howell 8203A 1932-3-12
GH: 00813725 Lycium minimum C. L. Hitchcock Ecuador: Galapagos Province South Seymour Island J. T. Howell 9946 1932-6-10
A: 00813448 Lycium richii hassei Johnston Mexico: Baja California Sur Turtle Inlet, Magdalena Bay J. T. Howell 10646 1932-8-10
GH: 00815130 Nicotiana nesophila I. M. Johnston Mexico: Colima Socorro Island: Near Benner's Cove J. T. Howell 8385 1932-3-26
Thelephoraceae FH: 00197185 Dictyonema sericeum (Swartz) Berkeley Ecuador: Galapagos Province Indefatigable Island [Isla Santa Cruz], on w... J. T. Howell 4 1932-5-10
FH: 00603733 Solenia endophila Fries Mexico: Colima Socorro Island: [no additional data] J. T. Howell s.n. 1932-3-26
Usneaceae FH: 00476636 Ramalina canalicularis (Nylander) Kashiwadani Mexico: Colima Socorro Island: [no additional data] J. T. Howell 22 1932-3-27
FH: 00476672 Ramalina complanata (Swartz) Acharius Mexico: Colima Clarion Island: [data not captured] J. T. Howell 27 1932-3-23
FH: 00476416 Ramalina sp. Mexico: Colima Socorro Island: [no additional data] J. T. Howell 21 1932-3-27
FH: 00477419 Ramalina usnea (Linnaeus) R. Howe Mexico: Colima Socorro Island: [no additional data] J. T. Howell 48 1932-3-27