1954] 



PLANTS COLLECTED IN NYASALAND 



67 



Some of the above specimens are probably referable to E. depauperata var. 

 pubiflora N.E.Br, in Thiselton-Dyer, Fl. Trop. Afr. 6 1 : 538 (1911); and part of 

 Brass 17164 would fit the description of E. depauperata var. pubescens Pax, 

 Ann. 1st. Bot. Roma 6: 188 (1897). The pubescence of E. depauperata seems so 

 variable and indefinite in the way it occurs that I prefer to treat E. depauperata 

 in a wide sense and not refer the above specimens to named varieties. 



Euphorbia matabelensis Pax, Ann. Naturh. Hofmus. Wien 15: 51. pi 2, /. A. 1900; 

 N.E.Br, in Thiselton-Dyer, Fl. Trop. Afr. 6 1 : 546. 1911; White, Dyer & 

 Sloane, Succ. Euphorb. (S. Afr.) 1: 89. 1941. 

 Kasungu District: Kasungu, locally gregarious in Brachystegia woodland, 

 shrub about 1 m. high, leafless at this season, flowers yellow, sap milky, 1000 

 m., Aug. 25, 1946, 17418. Tanganyika Territory, Nyasaland, N. and S. Rhodesia. 



Monadenium sp. nov. 



Kota-kota District: Chintembwe, common in rocky grasslands, perennial herb 

 about 2 cm. high, fleshy taproot to 8 cm. long x 2 cm. diam., flowering shoots 

 appearing just above the ground after burning of the grass, flowers pink or pinkish- 

 white, 1400 m., Sept. 9, 1946, 17585. 



Part of the above gathering has been submitted to Mr. P. R. O. Bally, of the 

 Coryndon Museum, Nairobi, Kenya, who writes that the plant is close enough to 

 a new species that he has described in a revision of Monadenium, to be published 

 elsewhere, that it may bear the same specific name. The main differences are 

 the glabrous stems (Brass 17585) and the larger peduncles, but the length of the 

 latter is a variable character in the genus. 



Mr. Bally's new species is known elsewhere only from two gatherings made 

 by Geilinger in southern Tanganyika, near Dabaga, south of Iringa. 



Mr. Bally writes that it is obviously a plant which belongs to the region where 

 pyrophytic forms are frequent, and the new locality of Brass 17585 fits in well 

 with the general picture which the genus presents. 



Bridelia cathartica Bertol. f. Illust. Mozambiz. 16(13): pi 6. 1852-1854 [not 

 seen]; Hutch, in Thiselton-Dyer, Fl. Trop. Afr. 6 l : 617. 1912. 

 Blantyre District: Blantyre, in Brachystegia woodlands, shrub 2 m. high, 

 leaves greyish beneath, margins recurved, fruit green, 1100 m., June 17, 1946, 

 16349. Kasungu District: Kasungu, occasional in Brachystegia woodlands, tree 

 4-5 m. high, fruit black when ripe, soft and fleshy, native name (Chinyanja) 

 tantanyerere, 1000 m., Aug. 24, 1946, 17408. Kenya, Tanganyika Territory, Zan- 

 zibar, Nyasaland, N. and S. Rhodesia, Portuguese East Africa, Bechuanaland, 

 and the Transvaal. 



I am using the name B. cathartica in a wide sense, to cover B. niedenzui 

 Gehrm. Bot. Jahrb. 41(Beibl. 95): 36 (1908) and B. fischeri Pax, Bot. Jahrb. 

 15: 531 (1893). I do not consider these specifically distinct, although when the 

 group is revised it should be possible to make varieties. 



Pseudolachnostylis maprouneifolia Pax, Bot. Jahrb. 28: 20 (1899) var. glabra 

 (Pax) Brenan, comb. nov. 

 Cleistanthus ? glaucus Hiern, Cat. Afr. PI. Welw. I 4 : 955. 1900. 

 Pseudolachnostylis dekindtii Pax var. glabra Pax, Bot. Jahrb. 43: 75. 1909. 

 Pseudolachnostylis glauca (Hiern) Hutch, in Thiselton-Dyer, Fl. Trop. Afr. 6 1 : 671. 

 1912. 



Kasungu District: Kasungu, occasional in Brachystegia woodlands, tree 4-6 

 m. high, flowers yellowish-green, native name msolo, 1000 m., Aug. 24, 1946, 

 17411. Chikwawa District: Chikwawa, frequent in Combretum-Sterculia woodland 



