14 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 9, No. 1 



tuberous, leaves fleshy, flowers purple, conspicuous, 2300 m., Aug. 13, 1946, 

 17195. SW. Tanganyika Territory and Nyasaland. 



Buchnera randii S. Moore, Jour. Bot. 38: 467. 1900; HemsL & Skan in Thiselton- 

 Dyer, FI. Trop. Afr. 4 2 : 387. 1906; Norlindh, Bot. Not. 1951: 121. 1951. 

 Kota-kota District: Nchisi Mountain, common locally in Bracbystegia wood- 

 land, herb 30-70 cm. high, flowers purple, 1400 m., July 24, 1946, 16911. Bel- 

 gian Congo, Portuguese East Africa, N. and S. Rhodesia, Angola, and now 

 recorded for the first time from Nyasaland. 



Buchnera nuttii Skan in Thiselton-Dyer, Fl. Trop. Afr. 4 2 : 388. 1906. 



North Nyasa District: Nyika Plateau; Nchena-chena Spur, scattered through 

 long grass of spur, perennial herb 1-1.5 m. high, stems simple or sparsely 

 branched, flowers white with purple throat, 1700 m., Aug. 20, 1946, 17358. Bel- 

 gian Congo, Kenya, N. Rhodesia, and now new to Nyasaland. 



Buchnera simiJis Skan in Thiselton-Dyer, Fl. Trop. Afr. 4\ 391. 1906. 



Mlanje District: Mlanje Mountain; Luchenya Plateau, two plants in open 

 grassland, perennial herb 60 cm. high, roots tuberous, purplish, flowers pink, 

 I860 m., June 26, 1946, 16431; south-west ridge, scattered in grassy places on 

 summit, perennial herb 30-50 cm. high, roots tuberous, purplish, flowers purplish- 

 white, 2400 m., June 28, 1946, 16501; Luchenya Plateau, in shelter of rocks in 

 grasslands, herb, branches weak, spreading, purple, roots tuberous, flowers 

 white, 2150 m., July 9> 1946, 16748. Endemic to Nyasaland. 



The stem of 16748 is profusely branched, of 16431 less so; the habit differ- 

 ence between B. similis and B. lastii Engl, noted by Skan (I.e.) thus disappears. 

 The flowers of B. similis evidently vary from pink to white. 



Buchnera eylesii S. Moore, Jour. Bot. 46: 72. 1908; Norlindh, Bot. Not. 1951: 

 124. 1951. 



Buchnera mossambicensis Klotzsch var. usafuensis Engl. Bot. Jahrb. 30: 404. 1901. 

 Buchnera leptostachya sensu Hemsl. & Skan in Thiselton-Dyer, Fl. Trop. Afr. 4 2 : 3 94. 



1906, pro parte; non B. leptostachya Benth. 

 Buchnera usafuensis (Engl.) Melchior, Notizbl. Bot. Gart. Berl. 11: 680. 1932. 



Kota-kota District: Nchisi, in moist gullies in Bracbystegia woodland, shrub 

 2 m. high, flowers white, 1350 m., Sept. 8, 1946, Vernay 17570. Tanganyika Ter- 

 ritory and S. Rhodesia, and now new to Nyasaland. 



The above synonymy, not previously suggested, seems necessary. 



Buchnera speciosa Skan in Thiselton-Dyer, Fl. Trop. Afr. 4 2 : 394. 1906. 



Kota-kota District: Nchisi Mountain, frequent in moist gullies in Bracbystegia 

 woodland, shrub about 2 m. high, slender and sparsely branched, flowers white, 

 showy, 1400 m., July 25, 1946, 16928. Endemic to Nyasaland. 



S. Moore, admitting that his new genus Eylesia was closely related to Buchnera, sep- 

 arated it by the "curious 2-lipped calyx." I have dissected a flower of the type-number, 

 Eyles 366 from S. -Rhodesia, and do not find the calyx to be at all 2-lipped — at least no 

 more so than in those species of Buchnera with four calyx-teeth. The sinuses separating 

 the pair of anticous from the pair of posticous lobes are no deeper than that between the 

 two anticous lobes, and are shallower than that separating the two posticous ones. The 

 calyx is distinctly fragile, and *I suspect that S. Moore may have described a calyx that 

 was split between the lobes. There is no reason anyhow for keeping up Eylesia as a dis- 

 tinct genus, and the above new combination is therefore made. Norlindh, Bot. Not. 1951: 

 124 (1951), also expresses grave doubts about the generic distinctness of Eylesia. 



Buchnera huchneroides has till now only been recorded from S. Rhodesia, but Milne- 

 Redhead 3760 (Herb. Kew.) from Mwinilunga District in N. Rhodesia is in my opinion 

 the same. 



