12 COFFEE 



almost imperceptible hairs; leaves elliptic-lanceolate, 



obtuse or obtusely caudate-acuminate, not very 



glossy, veins raised . . . .C. fragrans Wall, ex Hook. f. 



**. Calyx-margin nearly smooth ; flowers appearing after the 



leaves; branches slender, covered with brownish cortex, 



rough in appearance. . .C. travancorensis Wight & Arn. 



y. One calyculus commonly for several flowers; flowers 



frequently 6-merous; leaves herbaceous, both sides pale 



green, with about 7 first rank veins; hairs unicellular, 



woolly ; fruit oval 



C. hengalensis Heyne ex Roem. & Schult. 



II. Anthers exserted (extending completely out of the corolla-tube). 



1. Leaves deciduous, annual; — see 2. 



A. Leaves hairy, at least in the axils of the lateral veins; — 

 see B. 



a. Secondary branches rise upward forming an acute angle 

 with the stem. 

 X. Leaves ovate-lanceolate, scabrid C. racemosa Lour. 



B. Leaves glabrous, broadly ovate, shortly acuminate; branches 

 with grayish-white bark; flowers 6-partite, 2 to 6 in a 

 spireme C. Ibo Froehner 



2. Leaves evergreen, perennial. 



A. Leaves up to 15 cm. long; — see B. 



a. Leaves with distinctly elongated, narrow, and attenuated 

 tip which provides for the rapid drainage of water; — 

 see b. 

 X. Trees or shrubs, not climbing. 

 *. Flowers i to 3 together; — see **. 

 -f-. Flowers 6-7-partite. 



I. Calyx-margin projecting beyond the calyculus. 

 =. Calyx-margin short, indistinctly dentate; corolla 

 12 mm. long; bracts of the primary calyculus 

 linear ; leaves narrow, cuneate at the base, caudate- 

 acuminate, less then 15 cm. long, glossy on both 

 surfaces, grayish-green, 5 to 6 veins of the first 

 rank rather indistinct; a shrub or tree, slender, 

 glabrous; bark light gray. .C. stenophylla G. Don 



