PLANTS COLLECTED IN NYAS ALAND 



225 



Mountain, common in rain-forest regrowth, shrub 2-3 m. high, brown-hairy, flowers 

 white, 1200 m., Sept. 19, 1946, 17646. Uganda to South Africa. 



Hochreutiner, in his revision of Hibiscus (Ann. Cons. Jard. Bot. Geneve 4: 

 84. 1900) makes H. gossypinus Thunb. a synonym under H. jerrugineus Cav.; but 

 wrongly, for the latter is a quite distinct species from Madagascar. 



Hibiscus near calyphyllus Cav. Quinta Dissert. Bot. 283. pi* 140. 1788. 



Chikwawa District: Chikwawa, in Acacia albida woodland, shrub 20 cm. high, 

 flowers yellow with purple centre, 200 m., Oct. 3, 1946, 17916*. Tropical and 

 South Africa (H. calyphyllus). 



Brass 17916 differs from normal H. calyphyllus in the numerous short lateral 

 branches coming from a leafless main stem, and in the soft, denser shorter and 

 more uniform indumentum. Further material is necessary to decide whether this 

 is anything more than a form or state of H. calyphyllus. 



Hibiscus ludwigii Eckl. & Zeyh. Enum. PI. Afr. Austr. 39. 1834; Hochr. Ann. 

 Cons. Jard. Bot. Geneve 4: 161. 1900. 

 Kota-kota District: Nchisi Mountain, common in shrubberies bordering rain- 

 forest, shrub 2-3 m. high, hairs irritant, easily detached, petals yellow, purple 

 at base, not opening fully, 1650 m., July 31, 1946, 17063. Abyssinia to South 

 Africa. 



Hibiscus surattensis L. Sp. PI. 696. 1753. 



Chikwawa District: Lower Mwanza River, on a sandy beach, subprostrate 

 shrub, flowers yellow with mauve tube, 180 m., Oct. 4, 1946, 17967; ibid., oc- 

 casional on sandy beaches, subprostrate shrub, flowers yellow with maroon 

 centre, 180 m., Oct. 6, 1946, 18016. Widely distributed in the tropics of the Old 

 World. 



Hibiscus diversifolius Jacq. Coll. Bot. Chem. Hist. Nat. 2: 307. 1788; Ic. PI. 

 Rar. 3: 12. pi. 551. 1786-1793. 

 Kota-kota District: Chia area, on sandy lake-shores, shrub 1.5 m. high, 

 branches numerous, upright, flowers wine-coloured with darker reddish throat, 470 

 m., Sept. 2, 1946, 17480. Cholo District: Cholo Mountain, frequent in rain-forest 

 regrowth, scrambling shrub up to 10 m. high, flowers purplish-pink with dark 

 reddish-purple throat, 1200 m., Sept. 21, 1946, 17707. Tropical Africa and Amer- 

 ica, also Madagascar. 



Hibiscus vitifolius L. Sp. PI. 696. 1753. 



Kasungu District: Kasungu, weed in old garden, shrub 1 m. high, flowers yel- 

 low, throat purple, 1000 m., Aug. 27, 1946, 17439. Cholo District: Cholo Moun- 

 tain, common in rain-forest regrowth, scrambling shrub 2-3 m. high, flowers yel- 

 low with dark purple throat, 1200 m., Sept. 21, 1946, 17720. Chikwawa District: 

 Chikwawa, frequent about native village, shrub 1-1.5 m. high, flowers with 

 maroon centre, showy, 180 m., Oct. 5, 1946, 17983. Tropics of Africa, Asia, and 

 Australia, also West Indies (perhaps introduced). 



Hibiscus vitifolius L. var. ricinifolius (E. Mey. ex Harv.) Hochr. Ann. Cons. Jard. 



Bot. Geneve 4: 170. 1900; Exell & Mendonqa in Carrisso, Consp. FL. 



Angol. 1: 177. 1951. 

 Hibiscus jatrophaefolius A. Rich. Tent. Fl. Abyss. 1: 58. 1847. 

 Hibiscus ricinoides Garcke, Bot. Zeit. 7: 834. 1849. 



Hibiscus ricinifolius E. Mey. ex Harv. in Harv. & Sond. Fl. Cap. 1:171. I860. 

 Hibiscus natalitius Harv. in Harv. & Sond. Fl. Cap. 2: 587. 1862. 



Cholo District: Cholo Mountain, undergrowth of primary rain-forest, scrambling 

 shrub 3 m. high, flowers yellow with dark red throat, 1200 m., Sept. 20, 1946, 

 17658. Eritrea, Abyssinia, Uganda, Nyasaland, Angola, Natal. 



