Aygrophila. | XCVIII. ACANTHACEE (BURKILL), 31 
Flowers 2-10 at each node. __ . . 
Flowers in false whorls, the internodes obvious bet ween 
them. 
Stems hispid. . 
Leaves # in. broad; stamens equal. . - 4 A. uliginosa. 
Leaves 4 in. broad ; stamens very unequal . . 5. A. Teuczii. 
: Stems pubescent. - 
Calyx segments unequal. 
Ovary pubescent . . . . . 6. LL. spiciformis. 
Ovary glabrous. 
Calyx segments obtuse . . . . 7. H, odora. 
Calyx segments acute . . . . . 8. a acutisepala. 
. 1, astera- 
Calyx segments equal a. thoides, 
Flowers forming an apparent spike, hiding the inter- 
nodes. 
Calyx divided nearly to the base. . 
Stems glabrous, leaves slightly ciliate . . . 10. HZ. senegalensis. 
Stems and leaves pubescent . . . - 11. H. cerulea. 
Calyx divided to a little below the middle . . 12. H. micrantha. 
***Nomarniia. Flowers in small cymes, which are remote 
from the main axis on long peduncles. 
Flowers small, not exceeding # in. in length. 
Leaves ovate . . . 
Leaves linear or linear-lanceolate. . 
Stem and young leaves pilose . . . 14. HL. pilosa. 
. . . 13. ZH. ciliata. 
Stem and young leaves scabrid, pubescent, or 
glabrous. 
Leaves 13 lin. broad. . . . 
Corolla scarcely 2 lin. long. . : . 15. H, linearis. 
Corolla 8-9 lin, long . . . . . 16. H. gracillima. 
Leaves upwards of } in. broad. . . 17. H, levis. 
Flowers large, more than 1 in. in length . . . 18. H. Gigas. 
1. H. spinosa, 7’. Anders. in Thwaites, Enuin. Pl. Zeyl. 225. Stem 
stout, erect, hispid or more rarely glabrous. Leaves oblanceolate, with- 
out clearly distinct petioles, sparingly hispid on both surfaces, acute 
above, tapering very gradually to the base, 3-14 in. long, 5-15 lin. 
broad. Flowers in dense clusters in the axils of the leaves, with stout 
thorns (usually 6 to each whorl) and many lanceolate or linear bracts. 
Calyx with the upper sepal 7—9 lin. long, the others shorter and much 
narrower ; the lower pair fused almost or quite to the apex. Corolla- 
tube about 4 in. long, widening abruptly upwards ; lips 6—7 lin. long, 
mauve. Stamens nearly equal, with the filaments of the lower pair 
broadened, each attached to the filament of the upper stamen of its side 
at the base. Capsule about 4 lin. long, linear-oblong, 4—8-seeded.— 
I. Anders, Journ. Linn. Soc. vii. 22. ZH. longifolia, Kurz in Journ. As. 
Soc. 1870, ii. 78; Engl. Hochgebirgsfl. Trop. Afr. 337. Barleria 
longifolia, Linn, Amen. Acad. iv. 320. B. auriculata, Schumacher, 
skr, Pl. Guin. 285. 2B. macracantha, R. Br. (name only) in Salt., 
Abyss. App. 64, B. heeacantha, Moris in Mem. Acad. Turin, xxxvi. 200, 
t. 7. Ruellia longifolia, Roxb. Fl. Ind. iii. 50. Asteracantha longifolia, 
Nees in Wall. Pl. As. Rar. iii. 90 and in DC. Prod. xi, 247; Wight, 
Te. t, 449 3 Lindau in Engl. PA. Ost-Afr. C. 367, and in Ann. Istit. bot. 
ma, vi. 68. 4, auriculata, Nees in DC. Prod. xi. 248; A. Rich. Tent. 
