Brillantaisia.] 



XCVIII. ACANTHACEiE (bURKILL). 



87 



7. BRILLANTAISIA, Beauv. ; Benth. et. Hook. f. Gen. 

 PI. ii. 1076. 



Calyx 5-partite; segments linear, sometimes spathulate, usually 

 unequal. Corolla 2-lipped, conspicuous; tube comparatively short, 

 upper lip of two petals forming a hood ; lower of three petals more or 

 less saccate towards the base. Stamens 2, their anthers protected by the 

 hood of the corolla ; ventral pair of stamens represented by stamiuodes ; 

 filaments inserted into the tube of the corolla to which they are con- 

 nected for some distance. Pollen with longitudinal ribs, sometimes 

 spiny. Stigma projecting beyond the hood ; posterior lobe reduced to 

 a very small tooth. Ovary with many ovules. Capsule linear, its 

 valves grooved on the back, 2-celled. Seeds many, flattened ; retina- 

 cula present. — Herbs reaching 10 ft. in height, with large leaves, the 

 upper and often the lower side of which, owing to the presence of 

 crystals, appears as if marked with white scratches. Flowers of various 

 shades of purple. — BeUmtheria, Nees in DC. Prod. xi. OG. LeucorhaphiSy 

 Nees, I.e. 97. 



A genus confined to Tropical Africa and Madagascar, containing 22 species. 



* EuRYANTHiUM. — Infloresccnce a panicle, or in 8 a 

 raceme. 

 Sepals linear, equal, or nearly so, acute. 



Corolla nearly 1 in. long I. B. Lamium. 



Corolla nearly 14 in. long, glandular outside . ._ .2. B. Enuni. 

 Sepals linear, obtuse, sometimes spathulate, the posterior a 

 little larger than the others. 

 Corolla-tube more than half as long as the lips. 



All parts hairy 3. 5. pnhescens. 



Leaves glabrous. 



Panicle with short glandular hairs . . . . 4. B. Soycnixii. 



Panicle glabrous b. B. debilis. 



Corolla-tube not half as long as the lips. 

 Leaves lanceolate or ovate-lanceolate. 



Leaves pubescent 0- ^- Nyanzarunu 



Leaves glabrous. 



Posterior sepal broadly spathulate . . . 7. B. cicairicosa. 



Posterior sepal slightly broadened above. 



Inflorescence a slender raceme . . . . 8. B. lancifolia. 

 Inflorescence a panicle . . . • . \). B. oivariensis. 

 Leaves ovate, cordate or rounded below. 



Petioles firm, usually shorter than the blade of the 

 leaf. 

 Lips of corolla less than 3 in. long . . .10. B. votjeliana. 

 Lips of corolla ^-1 in. long. 



Panicle racemiform . . . • • . 1\. B. nlteng. 



Panicle lax, leaves nearly glabrous . . .12. B. salvnfiora. 

 Panicle lax, leaves pubescent . . . . IS. B. leonemis. 

 Lips of the corolla about li in. long . . • 1-i. B. pattda. 

 Petioles weak, almost as long'as the elliptical blade . 15. B. schwnanniana. 

 Sepals linear, the posterior much broader than the others. 



Posterior sepal twice as broad as the others . . IQ. B. Kirunyce. 



Posterior sepal thrice as broad as the others 



Corolla-tube .short 17. ^. suhduguruxi. 



Corolla-tube Icmi; 18. /^. nhujurica. 



