CLVII. GRAMINEiE (Stapf). 
27 
Zea.\ 
Congo, 311 ; Hack, in Bull. Herb. Boiss. iv. App. iii. 10 ; Nicholls, 
Text-book Trop. Agr. (1892) 260-265 ; Rendle in Cat. Afr. PL 
Welw. ii. 161 ; Th. & Hel. Durand, Syll. FI. Cong. 621 ; Mont- 
gomery, Corn Crops, (1913) 1-275; Davy, Maize (1914). Mays Zeci, 
Gsertn. Fruct. i. 6, t. i. fig. 9. 
Upper Guinea. Sierra Leone : Kanike, Thomas, 2094 ! Ronietta, Thomas, 
5638 ! Southern Nigeria : Obu, Thomas, 454 ! 553 ! 
Lower Guinea. Loanda : commonly cultivated, W elwitsch, 7320 ! 
A most important cereal and fodder plant, introduced into Tropical Africa 
by the Portuguese in the 16th century (Harshberger, l.c. 157), now grown in 
many of the drier parts of the continent and rapidly gaining ground. 
2. COIX, Linn. ; Benth. et Hook. f. Gen. PI. iii. 1112. 
Spikelets unisexual, in peduncled, more or less fascicled, often 
numerous, terminal and axillary spike-like racemes ; the 8 in several 
pairs or in threes, one of each pair or three pedicelled, the other 
(or others) . sessile on a slender rhachis which emerges from a solitary 
(rarely 2 superposed) usually globose or ovoid ivory-like capsuliform 
sheath enclosing a 2-nerved prophyll, two barren pedicels and a 
single spikelet. Male spikelets imbricate, lanceolate to elliptic- 
oblong, awnless ; glumes subequal, herbaceous, lower flat on the 
back, many-nerved, 2-keeled, keels winged upwards, upper some- 
what boat-shaped, very acute, keeled, about 11-nerved ; florets 2* 
lower almost as long as the glumes, upper distinctly shorter, both 
fertile or the upper barren ; valves lanceolate, acute, membranous, 
5-3-nerved , valvules hyaline, equalling the valves, 2-keeled ; lodi- 
cules 2, cuneate, fleshy ; stamens 3 ; anthers linear. Female spike- 
let : lower glume subglobose, upwards suddenly contracted into an 
acute subcartilaginous beak, below it hyaline-membranous, many- 
nerved, upper glume of the same length and similarly beaked, acute, 
very acutely keeled, with a deep groove on each side of the keel, 11- 
nerved, sides wide, subhyaline ; lower floret reduced to a valve 
resembling the lower glume, but 7-nerved ; upper floret consisting 
of a valve similar to the upper glume, but only slightly keeled and 
grooved and 5-3-nerved, and a very broad shortly beaked 2-nerved 
valvule, very thin and hyaline below the beak ; lodicules 0 ; stamens 
3, rudimentary ; style long, deeply 2-fid, its arms papillose, ex- 
serted from the capsuliform sheath ; grain enclosed in the latter 
and forming with it a false fruit, subglobose or ellipsoid, broadly 
grooved ; embryo large, as long as the grain ; hilum basal, large. — 
Annual grasses with rather stout, tall and erect or long and floating 
culms, branched upwards with fascicled inflorescences from the leaf- 
axils : leaves large, broad. 
Species 2 (?), hot countries of the Old World ; introduced in America. 
1. C. Lacryma-Jobi, Linn. Sp. PI. ed. i. 972. Culms 3-5 ft. high. 
Leaf -sheaths smooth, glabrous ; ligule very short, membranous ; 
