alt., evergreen forest, May 1950, Verdcourt § Greenway 216; Kwam- 
kuyu Falls, 840 m. alt., on rock scarp by waterfall, Jan. 1931, Green- 
way 2845; Mahenge Distr., Muhulu Mountains, 1200 m, alt., in mist 
forest, Feb. 1932, Schlieben 1844. 
This and the next species, 4. gracillima (Rolfe) Sum- 
merh., may be distinguished from all other species by 
the long spur, which reaches a length of 2.5—-6.5 em. 
A. tenerrima has the longest spur in the genus, from 5— 
6.5 cm. in length, and may also be distinguished from 
A. gracillima by the nature of the lateral lobes of the 
lip. In the present species these are as long as the middle 
lobe and almost parallel-sided to the apex which is often 
obscurely lobed or bluntly toothed, whereas in 4. gra- 
cillima the lateral lobes are shorter, often much shorter, 
than the middle lobe and quite entire at the apex. 
3. Angraecopsis gracillima (Rolfe) Summerhayes 
in Kew Bull. (1987) 465. 
Mystacidium gracillimum Rolfe in Kew Bull. (1913) 
144 — Schlechter in Beih. Bot. Centralbl. 36, Abt. 2 
(1918) 126. 
Betet1an Conoco: Between Masisi and Walikale, 1300 m. alt., in 
transition forest, March 1932, Lebrun 5156; Kamatembe, Bishakishaki 
River, N.W. of Mt. Nyamlagira, April 1934, De Witte 1516; Nyam- 
lagira, Kanamaharagi Lava, 1600 m. alt., in sclerophyllous vegeta- 
tion, Feb. 1945, Germain 3599; Goma, by Lake Kivu, in lava plains, 
1650 m. alt., in forest, March 1948, Purseglove 2616. 
Ucanpva: Toro District, 1800 m. alt., in forest, flowered Botanic 
Gardens, Entebbe, May 1939, Chandler 2792; Ankole District, Lake 
Lutoto, flowered Busingiro, Sept.—Oct. 1944, Eggeling 5470; Mengo 
District, Mabisa Forest, July 1908, Brown 444 (? Iso-Tyern); Masaka 
District, South Buddu, Fyffe 184; Mbale District, Mt. Elgon, Tracey 
Falls, 1650 m., alt., July 1917, Snowden 505; Mt. Elgon, 1800 m. alt., 
in forest, June 1924, Snowden 902. 
Kenya Cotony: North Kavirondo District, Kakamega-Kaimosi 
Forests, 1500 m. alt., flowered Nairobi Sept. 1938, Cunningham—Van 
Someran 47; Kakamega Forest, 1200 m. alt., April 1938, Van Someran 
(Coryndon Museum no. 8411); same locality, 1650 m. alt., in forest, 
Aug. 1942, Tweedie 590; South Kavirando District, Kisii, 1500 m. 
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