130 XCVIII. ACANTHACEE (CLARKE). [ Lindauea. 
ferior segments rather shorter, linear. Corolla purple-blue ; tube } in. 
long, much inflated in the upper half; lobes 4-3 in. long, connate in two 
lips ; anticous lip shortly 3-lobed ; posticous shorter, smaller, emarginate. 
Stamens 4; 2 anticous with 2-celled anthers (cells oblong, parallel, at 
equal height, muticous); 2 posticous with 1-celled anthers ; filaments 
glabrous. Ovary and style glabrous ; stigma of 2 subequal minute oblong 
lobes. Capsule 2 in. long, oblong ellipsoid, 4-seeded; seeds (unripe) 
appear as of Barleria.—Lindau in Engl. & Prantl, Pflanzenfam. Nachtr. 
zu il.—iv. 308. 
Nile Land. Somaliland: River Shebele, Donaldson Smith! Keller, 185 
Burka district, Ghika! 
33. ASYSTASIA, Blume; Benth. et Hook. Gen. Pl. ii. 1094. 
Calyx divided to the base ; segments 5, subequal, narrow, often small. 
Corolla-tube inflated upwards; limb 5-fid, hardly 2-lipped; anticous 
segment wholly outside in the bud. Stamens 4 ; anthers all subsimilar, 
2-celled ; cells oblong, nearly parallel or one a little lower, muticous or 
with 1 or 2 small spurs at the base ; pollen ellipsoid, with 3 stopples, 9 
longitudinal lines; in the typical species, long-ellipsoid, square-headed, 
subterete ; in A. macrophylla (and others) shortly ellipsoid, narrowed at 
the poles, trigonous. Ovary with 2 ovules in each cell, hairy or glabrous ; 
stigmas 2, subequal, short, oblong or hemispheric. Capsule 4-seeded at 
the top, on a long solid stalk ; seeds without hairs, compressed, rugose.— 
Herbs or shrubs. Leavesentire. Racemes, spikes or panicles apparently 
terminal (except in A. ansellioides), one-sided, lax, with minute bracts 
and bracteoles, or distichous with larger bracts, or densely strobiliform 
with large bracts and bracteoles, 
Species 34, in the warmer parts of the Old World. 
*Infloresceuce, at least apparently, terminal. 
Bracts minute ; racemes often 3- to many-flowered. 
Ovary hairy, at least in the upper half. 
Leaves ovate to oblong. 
Sepals 1— in, long, 
Corolla-tube 3-1 in. long. 
Pubescent or hairy 1. A. coromandeliana. 
Glabrous except the corolla 4, A. congensis. 
Corolla-tube 4 in, long. 2. A. parvula. 
Sepals 3 in. long. . . . 3. A. Buettnert. 
Leaves linear ; corolla-tube 4 in. long . 5. A. linearis. 
Ovary glabrous (very glandular in A. longituba). 
Corolla-tube 1-1} in. long ; leaves large. 
Anthers scarcely tailed, 
Inflorescence dense . . . . . 6. A, scandens. 
Inflorescence lax, 
Ovary glabrous; corolla-tube 2 in. . 7. A, vogeliana. 
Ovary glandular ; corolla-tube 13 in, 8. A. longituba. 
Anther-cells each with 2 tails ; leaves 8-14 in. 
jong . . . . . . . 9. A, macrophylla. 
Corolla-tube 4 in. long. . ° . . 10, A, africana. 
