72 



XCVIII. ACANTHACE^ (CLARKE). 



[Dyschoriste. 



Branches hairy; caiyx divided more than half- 

 way down ...... 



Branches sparsely hairy ; caly.\ divided less 

 than half-way down .... 



Anther-cells rounded at the base. 

 Small erect nearly glabrous annual 

 Scabrojis undershrub ...... 



Corolla f,-l in. long ; tube inflated upwards so that the 

 linear-cylindric lower portion is not very elongate 

 (see also 15. JD. linifolia). 

 Cymes small, flowers appearing as if in axillary clusters. 

 Leaves attaining l,\-3 in. in length. 



Corolla |— ^ in. long ; leaves about li in. long. 

 Lower leaves hairy ..... 



Lower leaves glabrous ... 

 Corolla 1 in. long; leaves up to 2-3 in. long 

 Leaves :^— 3 in.- long ...... 



Cymes loose, open, axillary ..... 



Corolla ^-2 in. long ; tube linear, funnel-shaped near the 

 top. 

 Anthers tailed at the base. 

 Corolla less than 2 in. long. 



Leaves exceeding 1 in. in length. 

 Corolla purple. 

 Calyx \ in. long. 



Villous ; calyx divided \ way down 

 Pubescent ; calyx divided \ way down 

 Calyx -^ in. long. 



Leaves linear-oblong ; flowers 1-2 to- 

 gether .... 



Leaves elliptic ; cymes axillary 

 Corolla yellow .... 



Leaves \-\ by |^ in 



Corolla exceeding 2 in. in length . 

 Anthers acute or scarcely mucronate at the base 



7. D. multicaulis. 



8. D. nohilior. 



4. D. muiica. 



9. D. nudanthera. 



10. D. trichocalyx. 



11. D. verticillaris. 

 14. D. heudelotiana. 

 13. D. capricornis: 



12. D. pedicellata. 



16. D. midehrandtii. 

 18. D. Volkensii. 



15. jD. linifolia 



19. D. mollis. 

 17. -D. Fischeri. 



20. D. tanganyikensifi. 



21. D. thunhergiijiora. 



22. D. somalensis. 



1. D. depressa, Nees in Wall. PL As. Rar. iii. 81. Shrub small, 

 with erect branches, glabrous ; innovations minutely scabrous-haiiy. 

 Leaves up to 1 by J in. (usually smaller), elliptic, obtuse, entire or 

 obscurely crenate, nerves and cystoliths obscure ; petiole J-^ in. long. 

 Flowers subsessile, often ^5-8, clustered ; bracteoles 2, linear-oblong, 

 hardly as long as the calyx-tube. Calyx J in. long, divided | way down ; 

 teeth linear, hispid ; tube nearly glabrous within. Corolla I in. long, 

 2-lipped. Capsule j-^ in. long, suberect, glabrous. — Nees in DC. Prod, 

 xi. 106. Calophanes Nagchanc. Nees in DC. Prod. xi. 109; C. B. 

 Clarke in Hook. f. Fl. Brit. Ind. iv. 410. C. crenatus, Schinz in Bull. 

 Herb. Boiss. iii. -115. TAnosiylis ovaia, Sonder in Linnaia, xxiii. '.>i. 



wile Xiand. British East Africa: Ukamba, 5000-6000 ft., Scott-Elliot, 

 6706 : Alau, 7000-8000 ft.,' Scott-Elliot, 6805 ! Usongora ; at the' Salt Lake, near 

 Katw6, Scott-Elliot, 7961 ! 



2. D. Perrottetii, 0. Kuntze, Rev. Gen. 480. Branches 12-18 in. 

 long, erect. Leaves up to o^ by | in., lanceolate, obtuse; nerves often 



