142 XCVIII, ACANTHACES (CLARKE). ( Barleria, 
Leaves many up to 1 in. in length, 
Leaves 2 in. long; posticous sepal spine- 
toothed . . . 14. B. grandicalyz. 
Leaves 1 in. long ; posticous sepal entire . 14. B. grandicalyz, var. 
Leaves 1 in. long; posticous sepal spine- 
toothed . . . 15. B. mucronata. 
Leaves (at least all the upper seen) scarcely 1 in. 
long. 
Posticous sepal spine-toothed. 
Posticous sepal 4 in. long, silky hairy . 16. B. ramulosa. 
Posticous sepal 3 in, long, membranous, ; 
veined. . . . 17. B. nyasensis. 
Posticous sepal hardly spinous. 
Spines slender, glabrescent . . 18. B. buctfolia. 
Spines simply hairy; leaves very thick and 
hairy . . 19. B. crassa. 
Spines gland-hairy ; corolla-tube 4 in. ‘long. 20. B. longissuma. 
Racemes unilateral, severai-flowered . . . 21. B, blepharoides. 
++Bracts next a flower toothed or compound spines, 
or toothed or pinnatifid leaves. Racemes 
several-flowered, often many-flowered. 
Posticous sepal not, or occasionally very sparingly, 
spine-toothed. 
Posticous sepal 3 in. broad, lanceolate . , 22. B. Marlothii. 
Posticous sepal 4 in. broad, ovate. 23. B. acanthoides. 
Posticous sepal spine-toothed, papery, reticulate. 
nervose. 
Innovations and leaves stellate-hairy beneath 
except in age. 
Stems shortly nary or finally glabrate. 
Leaves hardly 1 in. long; posticous sepal 
4 in. wide . . 24. B. Kirkii. 
Leaves up to 2 in. long; posticous sepal 
3 3 in. wide. . . 25, B. spinulosa. 
Leaves 3 in. long, with prominent cysto- 
liths beneath . . 26. B. Clivorum. 
Stem with spreading white hairs ahi in. . long. 27. B. consanguinea. 
Stellate hairs none or very few. 
Heads axillary, dense, subcapitate. 
Posticous sepal 14 in. long . . . 28. B. capitata. 
Posticous sepal 2 25 in. long . . 29. B. Steudnert. 
Heads axillary, manifestly unilateral, racemose, 
Leaves less than 1 in. long, spine- “tipped 
Villous ; corolla-tube 13 in. . . 30. B. mucrontfolia. 
Shortly canescent ; corolla-tube 12 i in. . 31. B. homoiotricha. 
Leaves 3 in. long, and apwards. 
Posticous sepal seareely 3 in, wide, deeply 
spinous . . 32. B, elegans. 
Posticous sepal 3 in. wide, shallowly . 
spine-toothed . . . 33. B. carruthersiana. 
Heads terminal, short-cylindric, dense . . 34, B, flava. 
Series B. Spineless. Bracts and sepals entire or scarcely toothed. 
*Somat1a.— Lower ovule in each cell minute or 0; capsule 
never having more than 2 seeds, small ovoid with 
