Coleus. | LABIATA (Cooke). 289 
VI. COLEUS, Lour. 
Calyx ovoid-campanulate, usually declinate in fruit ; upper tooth 
ovate, broader than the other 4; lateral teeth ovate-truncate or 
narrow and acute ; 2 lower teeth acute, often connate beyond the 
middle. Corolla usually purple or lilac ; tube much longer than the 
calyx, usually deflexed about the middle; throat funnel-shaped ; 
limb bilabiate; upper lip obtusely 3-4-lobed, the lower oblong, 
deeply concave. Stamens 4, didynamous ; filaments shortly connate 
into a tube above their insertion in the corolla-throat ; anther-cells 
confluent. Disk produced into a gland on the lower side of the 
ovary ; style equally 2-fid at the apex. Nutlets ovoid or subglobose, 
smooth. 
Annual or perennial herbs, shrubs or undershrubs; leaves various in shape, 
sessile or petiolate ; inflorescence spicate, racemose or subpaniculate ; verticils 
simple or in more or less developed opposite cymes ; bracts deflexed or deciduous, 
or the uppermost sometimes coloured and comose. 
Distris. Species about 150, extending through Tropical Africa, the Mascarene 
Isles, India, China, the Malay Archipelago, Australia and Polynesia, 
Leaves ovate, subcordate; bracts minute; flowerin 
calyx # lin, long “te mee 5 via -» (1) Rehmaznii. 
Leaves obovate, cuneate at the base; bracts large, 5 lin. 
long, 4 lin. broad ; flowering calyx 14-2 lin. long (2) Pentheri. 
1. C. Rehmannii (Briq. in Bull. Herb. Boiss. 2™° sér. iii. 1075) ; 
an erect herb 1 ft. high with ascending crisply pilose dull green or 
purple branches ; leaves scarcely reaching 1} in. long 1,°, in. broad, 
ovate, shortly acuminate, with slightly cordate or subcordate base, 
firm, more or less crisply pilose, dull green more or less reticulately 
nerved, regularly crenate ; petioles crisply hairy, shorter in the 
upper than in the lower leaves ; inflorescence a spike-like raceme 
reaching 6 in. long; verticils 6-flowered ; bracts minute, deciduous ; 
pedicels $14 lin. long ; flowering calyx minute, } lin. long, broadly 
campanulate, shortly hairy ; fruiting calyx 2 lin. long, membranous, 
nerved ; upper tooth rounded, 1 lin. long; lateral teeth rotund- 
truncate, 4 lin. deep; 2 lower 1} lin. long, separated from the 
lateral by a deep sinus, connate below; corolla small, externally 
puberulous ; tube scarcely exserted ; upper lip erect, shortly 3-lobed, 
lin. long ; lower lip 1} lin. long; staminal tube } lin. long ; nutlets 
less than } lin. long, smooth, pale yellow. 
Katanari Region: Transvaal ; Houtbosch, Rehmann, 6156 ex Briquet. 
2. C. Pentheri (Guerke in Ann. Naturhist. Hofmus. Wien, 
xx. 48); stem herbaceous, 8 in. high, softly pubescent with long 
white hairs ; leaves }-1} in. long, {—} in. broad, obovate, obtuse or 
subacute, moderately thick, hairy on both sides, margins crenate, 
base cuneate; petioles very short, hairy ; inflorescence a simple 
spike-like raceme up to 5} in. long; rhachis densely pubescent, 
VOL. V.—SECT. I. U 
