Araucariaceae A: 02469029 Araucaria cunninghamii Aiton ex A. Cunningham Singapore: Lawn L in Botanical Garden Singapore. R. E. Holttum SF 24983 1931-8-28
Convolvulaceae A: 02422939 Jacquemontia tomentella (Miquel) H. Hallier Malaysia: Sabah Kabayan Koung R. E. Holttum SFN.25110 1931
Ericaceae A: 01819915 Diplycosia heterophylla latifolia (Blume) Sleumer Malaysia: Pahang Cameron's Highlands R. E. Holttum 24986 1931-11
Euphorbiaceae A: 01690794 Mallotus peltatus (Geiseler) Müller Arg. Malaysia: Pahang Jerantuh R. E. Holttum 24757 1931-4-25
Fabaceae A: 02259386 [None] Malaysia: Johor Sungai Endau R. E. Holttum SF 24905 1931-7-5
A: [None] Malaysia: Johor Sungai Endau R. E. Holttum SF 24905 1931-7-5
Gesneriaceae A: 02314018 Didissandra sp. : Borneo: Kebayan-Kounge R. E. Holttum SF 25118 1931-3-11
Hernandiaceae A: 02222367 Hernandia ovigera Linnaeus Malaysia: Johor Tanjong Selantai R. E. Holttum SF 24965 1931-7-10
Hymenophyllaceae A: 02581081 Crepidomanes bipunctatum (Poiret) Copeland Malaysia: Semenanjung Malaysia: Kedah: Pulan Langkaur,... R. E. Holttum 1931-11-23
Myrsinaceae A: 02441779 Embelia dasythyrsa Miq. Malaysia: Sabah Koung - Dallas. R. E. Holttum SFN 25126 1931-11-4
Myrtaceae A: 02436021 Syzygium longiflorum C. Presl Malaysia: Pahang near Temuloh R. E. Holttum 24596 1931-4-21
Orchidaceae AMES: 02340938 Bromheadia divaricata Ames & C. Schweinfurth Malaysia: Sabah Kota Kinabalu: Kinabalu R. E. Holttum 1931-11
AMES: 02386664 Bulbophyllum coriaceum Ridley ex Stapf Malaysia: Sabah Kamborangah, Kinabalu R. E. Holttum 1931-11-16
AMES: 02386695 Bulbophyllum coriaceum Ridley ex Stapf Malaysia: Sabah Kamborangah, Kinabalu R. E. Holttum 36564 1931-11-16
AMES: 02386966 Bulbophyllum microglossum Ridley Malaysia: Sabah Marei Parei, Kinabalu R. E. Holttum 1931-11-22
AMES: 02386981 Bulbophyllum montense Ridley ex Stapf Malaysia: Sabah Pakka Pakka, Kinabalu R. E. Holttum 1931-11-16
AMES: 02385140 Bulbophyllum purpurascens Teijsmann & Binnendijk Malaysia: Sabah Dallas, Kinabalu R. E. Holttum 25288 1931-11-6
AMES: 01985317 Calanthe musa-amanii Jeffr. J. Wood & C.L. Chan Malaysia: Borneo: Penilukan Ridge, Kinabalu R. E. Holttum s.n. 1931-11-24
AMES: 01985317 Calanthe sp. Malaysia: Borneo: Penilukan Ridge, Kinabalu R. E. Holttum s.n. 1931-11-24
AMES: 02093719 Chelonistele sp. Malaysia: Sabah Mt. Kinabalu: Marei Parei R. E. Holttum 1931-11-23
AMES: 02093290 Coelogyne venusta Rolfe Malaysia: Sabah Marei Parei, Kinabalu R. E. Holttum 1931-11-23
AMES: 02093783 Dendrochilum alatum Ames Malaysia: Sabah Mt. Kinabalu: Pakka Pakka R. E. Holttum 1931-11-16
AMES: 02093842 Dendrochilum cruciforme J. J. Wood Malaysia: Sabah Mt. Kinabalu: Marei Parei R. E. Holttum 1931-11-22
AMES: 02093857 Dendrochilum dewindtianum W. W. Smith Malaysia: Sabah Mt. Kinabalu: Kamborangah R. E. Holttum 1931-11-16
AMES: 02093855 Dendrochilum dewindtianum W. W. Smith Malaysia: Sabah Mt. Kinabalu: Kamborangah R. E. Holttum 1931-11-16
AMES: 02093909 Dendrochilum grandiflorum (Ridley ex Stapf) J. J. Smith Malaysia: Sabah Mt. Kinabalu: Pakka-Pakka R. E. Holttum 1931-11-15
AMES: 02093931 Dendrochilum haslamii Ames Malaysia: Sabah Mt. Kinabalu: Pakka-Pakka R. E. Holttum 1931-11-16
AMES: 02093946 Dendrochilum kamborangense Ames Malaysia: Sabah Mt. Kinabalu: Kamborangah R. E. Holttum 36567 1931-11-16
AMES: 02153002 Dendrochilum pterogyne Carr Malaysia: Sabah Mt. Kinabalu: Kamborangah R. E. Holttum 1931-11-16
AMES: 02153036 Dendrochilum stachyodes (Ridley ex Stapf) J. J. Smith Malaysia: Sabah Mt. Kinabalu: Pakka-Pakka R. E. Holttum 1931-11-15
AMES: 02125553 Epigeneium kinabaluense (Ridley ex Stapf) Summerhayes Malaysia: Sabah Mt. Kinabalu: Marei Parei R. E. Holttum 1931-11-23
AMES: 02126458 Eria grandis Ridley ex Stapf Malaysia: Sabah Mt. Kinabalu: Pakka Pakka, Kinabalu R. E. Holttum 1931-11-16
AMES: 02095652 Liparis elegans Lindley Malaysia: Sabah Mt. Kinabalu: Dallas R. E. Holttum 1931
AMES: 02095784 Liparis pandurata Ames Malaysia: Sabah Mt. Kinabalu: Lobang R. E. Holttum 1931-11-18
AMES: 02175294 Malaxis sp. Malaysia: Sabah Dallas 39th mile, Kinabalu R. E. Holttum 25271 1931
AMES: 02175276 Malaxis sp. Malaysia: Sabah Katayan to Kourg R. E. Holttum 25120 1931
AMES: 02096447 Oberonia affinis Ames & C. Schweinfurth Malaysia: Lobang, Kinabalu R. E. Holttum 1931-11-18
AMES: 02096447 Oberonia anceps Lindley Malaysia: Lobang, Kinabalu R. E. Holttum 1931-11-18
AMES: 02329329 Pennilabium Malaysia: Sabah Lobang, Kinabalu R. E. Holttum 1931-11-18
AMES: 02550406 Thrixspermum Malaysia: Sabah Ranau: near Pakka Pakka, Kinabalu R. E. Holttum 1931-11-16
AMES: 02158605 Vanilla kinabaluensis Carr Malaysia: Sabah B. N. Borneo. Dallas, Kinabalu R. E. Holttum 25273 1931
Pandanaceae A: 02457788 Pandanus helicopus Kurz Malaysia: Johor Sungai Endau, Johore R. E. Holttum 24906 1931-7-5
Poaceae A: 02470041 Miscanthus floridulus (Labill.) Warb. ex K.Schum. & Lauterb. Malaysia: Sabah 39 mile Dallas. R. E. Holttum SF 25268 1931-11-5
Rhamnaceae A: 02553540 Alphitonia excelsa (Fenzl) Reissek ex Endlicher Malaysia: Sabah North Borneo; Koung-Dallas R. E. Holttum SFN.25124 1931-11-4
Symplocaceae A: 02601091 Symplocos crassipes penangiana (King & Gamble) Nooteboom Malaysia: Johor Sungai Endau R. E. Holttum SFN 24934 1931-7-8
Thelypteridaceae GH: 02404980 Pneumatopteris truncata (Poiret) Holttum Malaysia: Pahang Mentakab West R. E. Holttum 24555 1931-4-20
Verbenaceae A: 02526431 Vitex pinnata Linnaeus Malaysia: Pahang Temerloh R. E. Holttum SF 24574 1931-3-21