182 xcviii. ACANTHACE.E (clarke). [As7/sta8ia. 



Iiower Cuinea. Princes Isle, Nrtcton, 19 ! Quintas, 89 ! 93 ! G:\boon : 

 MmidH; Sibange Farm, Bilttner, 452! 611! Soi/aux, 190! 198! 198a! Angola, 

 Weliuitsch, 5050 ! 5131 ! 5160 ! 5170 I 5196 ! 5206 ! Mechoio, 53 ! 



Soatb Central. Concro Free State : Bangala, 1000 ft., Hena, 124 ! Bolobo, 

 on the Congo, Bilttner, 153 ! 454 ! Lulua River, Poqge, 1246 ! 



Mozamb. Blst. Zanzibar, Rildehrandt, 980 ! Stuhlmann, 409 ! 1086 ! 1087 ! 

 l*eters : Matia Island, Bartle-Frere ! German East Africa: Kiliraanjiiro, 9000 ft., 

 Meyer, 33 ! 5000 ft., Vulkens, 710 ! Ugweno Mountain, Meyer, 171 ! Karagwe ; 

 Bukobii, Stuhlmann, 3677! 3938! Usambara; Tanga, Hoist, 2063! Volkens, 7! 

 163! Mascheua, Hoist, 8733! Usaramo; Dar-es-Salaam, Stuhlmann, 7602! 7665! 

 7698! 7701! Lake Tanganyika; Kavala Island, Carson, 27! Rovuraa River, Metier! 

 Portuguese East Africa: Zambesi Delta; River Luabo, Kirk, 34^ \ Lower Valley of 

 the River Shire, Metier ! Boror, Peters ! British Central Africa : Lake Nyasa, Simon ! 

 Urungu ; Abercorn, Carson, 27! Nyasaland ; Mount Mlange, WTiyte ! Shire High- 

 lands, Buchanan, 321 ! Shire River, Kirk ! and without precise locality, Buchanan, 

 872! 



Also in Tropical Asia. 



The corolla of this weed varies (in Africa as in Asia) greatly in size and in colour. 

 The types of Klotzsch's species reduced have been seen. 



2. A. parvula^ G. B. Clarke. Hairy. Leaves up to \ by \ in., 

 ovate, subpetioled. Raceme 1 J in. long, with distant flowers ; bracts 

 hardly ^\ in. long. Calyx \ in. long, pubescent and with gland-tipped 

 hairs. Corolla in total length J in. ; tube less than J in. long. Stamens 

 and pistil as of A. coroTnandeliana, Nees. Capsule less than ^ in. long. 



wile Iiand. Somaliland : Adda Galla, James Sf Thrupp ! 



The anthers, pollen, stigmas, are identical with those of A. coromandeliana, of 

 which even this may be a depauperated state. 



3. A. Buettneri, Lindau in Engl. Jahrh. xx. 37. Hairy. Leaves 

 5 by 2 in., ovate ; petiole 0-§ in. long. R-acemes 2 in. long, terminal, 

 one-sided ; pedicels scarcely yV i^- ^^^g '■> bracts minute. Sepals 5, 

 i by ~ in., linear-oblong, with long white hairs. Corolla white ; tube 

 I in. long. Anthers minutely tailed at the base. Ovary with the style 

 base very hairy. — Lindau in Engl. & Prantl, Pflanzenfam. iv. 3 B. 

 320. 



Upper Guinea. Togoland, jBii^ner, 260! 283! A7iw^, 191 ! 

 Tliis is allied to the large forms of A. coromandeliana, Nees (called formerly 

 A. calycina, Benth.), but has larger flowers and very much larger sepals. 



4. A. congensis, C. B. Clarke. Glabrous, except the puberulous 

 corolla. Leaves '^\ by 1 in., elliptic, acuminate at each end ; petiole 

 0-J in. long. Raceme terminal, 3-flowered, peduncled ; bracts hardly 

 yV in. long, linear. Sepals \ in. long, linear-oblong, microscopically 

 pubescent. Corolla-tube 1 in. long, puberulous. Stamens 4, subsimilar ; 

 outer cells parallel, muticous at the base ; pollen of genus. Style hairy 

 at the base ; stigma 2, subglobose. 



Iiower Guinea. Lower Congo : Stanley Pool, Callewaert ! 



5. A. linearis, S. Moore in Journ. Bot. 1894, 136. About 2 ft. 

 high. Branches tetragonal, puberulous. Leaves 2J-3 by \-\ in., sessile, 



