422 cii. LABIATE (baker). [Solenostemo7i. 



'). S. Manniiy Baker. An herbaceous perennial, with erect stems, 

 3 ft. long, and firm glabrous blanches. Leaves petioled, ovate, acute, 

 crenate, cuneate at the base, moderately firm, glabrous, 1-H in. long. 

 Inflorescence a lax, cylindrical, peduncled, terminal panicle 3-4 in. long, 

 with slightly compound subsessile cymose branches; pedicels long, 

 slender. Flower-calyx yV in. long, deeply bilabiate ; upper lip ovate, 

 reflexed ; lower oblong. Corolla J in. long ; lower lip longer than the 

 tube. — Coleiis Mannii, Hook. f. in Journ. Linn. Soc. vii. 211 ; Engl. 

 Hochgebirgsfl. Trop. Afr. 361. 



Upper Guinea. Cameroons : Cameroon Mountain, 5000-6000 ft., Mann^ 

 1967 1 



(i. S. cjnnosuSy Baker. Stems 10-12 ft. long, slender, square, 

 glabrous. Leaves ovate, acute, long-petioled, nearly or quite glabrous, 

 the lower 3-4 ii^. long. Whorls distant, each composed of two lax 

 cymes, arranged in a panicle reaching a foot in length ; pedicels 

 glabrous, ^-J in. long, in fruit up to o lin. ; bracts minute. Calyx 

 finally \ in. long ; tube campanulate ; upper lip orbicular, reflexed ; 

 lower oblong, concave. Corolla-tube much longer than the calyx, 

 deflexed and dilated at the throat ; lower lip \ in. long. Stamens as 

 long as the lower lip. 



Upper Guinea. Cauieroons: Cameroon Mountain, 1000-3000 ft., Mann, 

 1251 ! 



Schweinfurth's No. 3596 from Moiibuttu is probably a near ally, but our specimen 

 does not show corolla and stamens. 



15. COLEUS, Lour. ; Benth. et Hook. f. Gen. Plant, ii. 11 70. 



Calyx usually declinate in fruit ; tube campanulate ; upper tooth 

 ovate ; 4 lower narrower, acute. Corolla-tube much longer than the 

 calyx, deflexed about the middle ; throat funnel-shaped ; limb bilabiate; 

 lower lip long, oblong, deeply concave. Stamens 4, didynamous, decli- 

 nate ; filaments united in a tube above their insertion in the throat of 

 the corolla; anther-cells confluent. Disk produced into a gland on 

 the lower side of the ovary. Style bifid at the apex. Nucules ovoid 

 or subglobose, smooth. — Annual or perennial herbs or small shrubs. 

 Leaves various in shape, petioled or sessile. Whorls of racemes 

 usually simple, rarely compound. Flowers usually lilac, small or 

 middle-sized. 



Species 80-100, spread through the warmer regions of the Old World. 



**Cyme8 umbellate, arranged in a simple racemose panicle. 

 Leaves sessile or subsessile. 

 Perennial herbs. 



Leaves thin and not at all Heshy. 

 Root without tubers. 



Leaves glabrous . 1. C. aquaiicus. 



Leaves pubesceut . . 2. C. glandulosus. 



