34 
CXLIII, COMMELINACEE (CLARKE). [ Commelina. 
Seeds ovoid or ellipsoid. 
Spathes shaggy with multicellular 
hairs. 7. C. angustissima, 
Spathes glabrous, with ciliate mar- 
cis. . - . 9. C. violacea. 
Seeds nearly flat, 3-lobed . : 8. C. trilobosperina. 
Roots thick ; stems thicker, faidencd at the 
base. 
Spathes 3 in. long; leaves narrowly linear. 
Spathes shaggy, with a nearly straight 
tip 10: 
. C. purpurea. 
Spathes glabrate, with a deflexed tip . 11. 
C. nyasensis, 
Spathes 13 in. long; leaves long linear- 
lanceolate . 12. C. celestis. 
Leaves ovate 13. C. crassicaulis. 
§§§Seeds smooth : ; 14. C. Schweinfurthit. 
| {Spathe having its margins connate | near the base, so 
that the spathe is hooded or obliquely funnel- 
shaped. (See also 14, C. Schweinfurthii.) 
Peduncle of spathe hardly longer than the leat- 
sheath. 
Leaves triangular at the tip, not very acute. 
Spathes obliquely funnel-shaped 15. C. benghalensis. 
Spathes with the keel much curved 16. C. uncata. 
Leaves acuminate to an acute tip. 
Leaves lanceolate, glabrate 17. C. congesta. 
Leaves elliptic-lanceolate, hairy c . 18. C. condensata, 
Peduncle of the spathe much longer than the 
leaf-sheath. 
Spathe hirsute ; seeds subglobose, smooth . . 19. C. zambesica. 
Spathe glabrous; seeds abies panes 
wrinkled. . . 20. C. boissieriana. 
++ Heterocarpus.—Capsule B-celled, 2- sald the anal valve deciduous with thd 
included seed, indehiscent, the seed very ‘intimately attached to the pericarp. 
Ventral cells with 2 ovules in each cell; both usually withering (without pro- 
ducing a fertile seed) ; in a few species the capsule is frequently 3-seeded. 
Margins of spathe connate at the base ; capsule often 
3-seeded ; corolla blue. : 21. 
Spathe simply folded, the margins free at the ‘pase ; 
corolla yellow, 
Leaves small, at most 1} in, long : . . 30. 
Leaves, or many of them, 13 in. long or more. 
Leaves linear or linear-lanceolate. 
Leaves nearly glabrous ; seeds ;4 in. long 
Leaves puberulous ; 
Leaves lanceolate or broader (elliptic or ovate). 
Mature leaves nearly glabrous. 
Spathes 1-2 in. long, acuminate . 
Spathes ? in. long, shortly acute . : 
Spathes up to 3 in. long, elongate-acuminate . 27. 
Mature leaves pubescent, 
Leaves lanceolate, 
Spathes 1-2 in. long . 
Spathes up to 23 in. long. . 
Leaves ovate, subcordate at the base . 
C. Forskalai. 
C. Mannii. 
. C. Kirkii. 
seeds din. long . +29: 
C. boehmiana. 
C. africana. 
. C. edulis. 
C. Buchanani. 
. C. krebsiana. 
. C. involucrosa, 
. C. cordifolia, 
