1954] 



PLANTS COLLECTED IN NY AS ALAND 



463 



tis); ibid., in marshy Brachystegia woodland, herb 1 m. high, flowers white, 1400 

 m., July 28, 1946, 17009.* The species widespread in tropical and S. Africa; for 

 the variety see below. 



Besides the above Nyasaland specimens, the following in Herb. Kew. are ref= 

 erable to this variety. 



BELGIAN CONGO: Rutshuru, 1937, Ghesquiere 3790. 



ANGLO-EGYPTIAN SUDAN: Tuhumis Seriba, Tudimma, Niam-niam Land, in swamps, 

 flowers white, May 25, 1870, Schweinfurth 3784. 



UGANDA: Western Province, Toro District: "Kasamaga" (? = Kasagama), 1620 m., 

 April, Scott Elliot 7606. Buganda Province, Masaka District: Kiebbe, occasional in 

 swampy grassland, 1 m. high, flowers white, 1220 m., June 25, 1935, A. S. Thomas Th. 

 1326. Mengo District: swampy parts near Kampala, June 24, 1915, /. D. Maitland 137. 

 AB; King's Lake, Kampala, on marshy outskirts of lake, height up to nearly 75 cm. in some 

 cases, stems and leaves purplish, flowers white, 1190 m., Nov. 22, 1935, Chandler- 

 Hancock 88. Entebbe District: Entebbe, Butambala country, herb 1 m. high, heads white 

 owing to large long white stigmas protruding, all parts of flower with sticky glands, sweet- 

 scented, 1220 m., Dec. 1930, Hansford S 1867. Province and district doubtful: Nyakaswia 

 School, among shrubs, flowers white, leaves used for cough-medicine, vernacular name 

 omurubate, 1620 m., May 20, 1932, E. M. Shillito 112. "Cultivated ground Uganda," herb 

 30=60 cm. high, whole plant rough to touch, flowers white, 1880, Rev. C. T. Wilson 128. 



Kenya: Nyanza Valley Province, Nandi District: Nandi country, Sibu, 1905, Sir Evan 

 James s. n. 



S. RHODESIA: Umtali District: Odzani River Valley, 1914, A. J. Teague 177. 



Typical Adenostemma caffrum DCo from S. Africa has coarsely incise-serrate 

 leaves, usually with a very short scabrid pubescence on the nerves beneath, and 

 a similar indumentum on the stem. The new variety has a much coarser and 

 denser, strongly asperous pubescence on both sides of the leaf, giving it a sand- 

 papery "feel." The stem, especially the lower part, is more or less strongly 

 beset with, in addition to its pubescence, hard conical tubercle-like hairs making 

 the stem very rough. The leaves of the new variety are lanceolate to ovate- 

 lanceolate with shallower and more obtuse serrations than in the S. African plant. 

 In tropical Africa plants occur having leaves similar in shape to var. aspenim, but 

 glabrous or only sparingly pubescent, and these are connected with the variety 

 by some intermediates. 



Adenostemma perrottetii DC. Prodr. 5: 110. 1836. 

 Adenostemma dregei DC. Prodr. 5: 111. 1836. 



Adenostemma viscosum sensu Oliv. & Hiem in Oliv. Fl. Trop. Afr. 3: 299. 1877, pro 

 parte; non Forst. 



Cholo District: Cholo Mountain, gregarious in open muddy bottoms of gullies 

 in rain-fcrest, herb about 50 cm. high, fleshy, ascending, flowers white, 1200 m., 

 Sept. 21, 1946, 17724. Widespread in tropical and S. Africa. 



I am unable to distinguish A. dregei from A. perrottetii, which is itself very 

 closely akin to the Asiatic A. lavenia (L.) Kuntze, and apparently only distin- 

 guishable, perhaps not specifically, by the nature of the warting on the achenes. 

 For further comments see Koster, Blumea 1: 469 et seq. (1935). 



Eupatorium africanum Oliv. & Hiern in Oliv. Fl. Trop. Afr. 3: 301. 1877. 



Kota-kota District: Chenga Hill, frequent in low open Brachystegia woodland, 

 perennial herb 30-40 cm. high, viscid, rootstock large, woody, numerous young 

 stems forming bushy clumps after burning of the grass, flowers cream, 1600 m., 

 Sept. 9, 1946, 17596. Widespread in tropical Africa, extending south to the Trans- 

 vaal and Swaziland. 



Mikania cordata (Burm. f.) B. L, Robins. Contr. Gray Herb. 104: 65. 1934. 

 Ewpatorium cordatum Burm. f. Fl. Ind. 176. pi. 58, f. 2. 1768. 

 Mikania scan dens sensu auct. afr.; non (L.) Willd. 



