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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[Vol. 8, No. 5 



In addition it appears that S. milanjianus is an epiphyte or on rocks, while 

 S. peltophorus grows on the ground. 



Senecio pachyrhizus O. Hoffm. Bot, Jahrb. 30: 435. 1901. 



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

 perennial herb 30-35 cm. high, young shoots flowering after the burning of the 

 grass, rootstock large, woody, flowers cream, 1600 m., Sept. 9, 1946, 17602, New 

 to Nyasaland; previously recorded only from Tanganyika Territory. 



Brass 17602 shows charred and tattered relics of mature foliage, which has 

 not been described for this species. The leaves are at least 45 cm. long, prob- 

 ably narrow, about 4 cm. wide with toothed margins, more or less densely cottony 

 beneath. 



Crassocephalum rubens (Jacq.) S. Moore, Jour. Bot. 50: 212. 1912. 

 Senecio rubens Jacq. Hort. Vindobo 3: 50. pL 98. 1776. 

 Senecio cemuus L. f. Suppl. 370. 1781, nom. illegit. 

 Crassocephalum cemuum (L. f.) Moench, Meth. 516. 1794. 

 Gynura cemua (L. f.) Benth. in Hook. Niger Fl. 437. 1849. 

 Gynura rubens (Jacq.) Muschl. Repert. Sp. Nov. 11: 119. 1913. 



Zomba District: Zomba Plateau, frequent in Brachystegia woodlands, herb 

 80-100 cm. high, flowers blue, 1500 m„ June 7, 1946, 16318; ibid., frequent in 

 Brachystegia woodlands and as a weed on disturbed ground, perennial herb up 

 to 1 m. high, flowers purple, 1500 m., June 9, 1946, 16326. Widely spread as a 

 weed in the tropics. 



The flowers of C. rubens may be pink, magenta, purplish, or blue, whilst a 

 white-flowered form has been known to occur. 



Crassocephalum bojeri (DC.) Robyns, Fl. Spermat. Pare Nat. Albert 2: 544. 1947. 

 Senecio bojeri DC. Prodr. 6: 376. 1838. 



Senecio subscandens Hochst. ex A. Rich. Tent. FL Abyss. 1: 434. 1847. 



Cholo District: Nswadzi River, common on grassy riverbanks, scrambling herb 

 2 m. high, sap not milky, branches blotched with purple, flowers yellow, native 

 name (Chinyanja) moleza, 840 m., Sept. 27, 1946, 17848, Eritrea to S. Rhodesia 

 and Angola, 



Crassocephalum mannii (Hook, f.) Milne-Redhead, Kew Bull. 1950: 377. 1950. 

 Senecio mannii Hook. f. Jour. Linn. Soc. Bot. 6: 14. 1862. 

 Senecio multicorymbosus Klatt, Ann. Naturh. Hofmus. Wien 7: 103. 1892. 

 Senecio acervatus S. Moore, Jour. Linn. Soc. Bot. 40: 121. 1911. 

 Crassocephalum multicorymbosum (Klatt) S. Moore, Jour. Bot. 50: 211. 1912. 



Kota-kota District: Chenga Hill, in bush growths among rocks, arborescent 

 shrub 3.5 m. high, aromatic, branches upright, fleshy, flowers yellow, 1600 m., 

 Sept. W\ 1946, 77597. Cholo District: Cholo Mountain, plentiful in rain-forest 

 regrowths, tree up to more or less 8 m. high, branchlets and leaves fleshy, flow- 

 ers yellow, 1200 m., Sept. 21, 1946, 17721. Widely spread on mountains from the 

 Cameroons to S. Rhodesia. 



In keeping Crassocephalum Moench as a genus distinct from Gynura Cass., 

 I am following Spencer Moore (I.e. 210). The differences between the style struc- 

 tures of Crassocephalum and Gynura are similar in degree to the differences be- 

 tween the style structure of either of these genera and that of Senecio L, The 

 only other logical treatment is to consider both Crassocephalum and Gynura as 

 subgenera of Senecio, a treatment which has been followed by German botanists, 

 but with which I am not in agreement. 



Osteospermum monocephaium (Oliv. & Hiern) Norlindh, Stud. Calend. 1: 288. 1943. 

 Tripteris monocephala Oliv. & Hiern in Oliv. Fl. Trop. Afr. 3: 424. 1877. 



