580 
CXIII. GrKAMINEiE 
Leaves 1-2 in., glabrous except the mouth of the sheath. Spikes 
2-6, 1-2 in. long, margins entire. Spikelets ^ in., minutely 
hairy. Lowest glume often absent ; second acute, as long as the 
two upper ones. 
Simla. — W. Himalaya, 5000-10,000 ft. — N. Asia, Europe, including Britain. 
PaniCum glabrum and Digitaria Jiumifusa are synonyms. 
*3. Paspalum longiflorum, Retz . ; FI. Br. Ind. vii. 17. Stems 
6-18 in., tufted, more or less procumbent and rooting at the joints. 
Leaves usually J-2 in., glabrous except the mouth of the sheath. 
Spikes 2-5, very slender, 1-4 in., silvery white. Spikelets less 
than in., glabrous or minutely hairy ; stalks smooth. Lowest 
glume absent ; second nearly as long as the two upper ones. 
Throughout India, ascending to 6000 ft. — Tropical and subtropical regions 
of the Old World. 
4. Paspalum Royleanum, Nees ; FI. Br. Ind. vii. 18. Stems 
12-18 in., tufted, erect. Leaves 2-6 in., erect, glabrous except 
the mouth of the sheath. Spikes 2-5, very slender, 1-4 in., 
silvery white. Spikelets less than — in., densely and minutely 
hairy ; stalks rough with minute points. Lowest glume absent"; 
second nearly as long as the two upper ones. 
Simla. — Hilly districts throughout India, ascending to 7000 ft. 
2. ISACHNE. From the Greek isos, equal, and achne, a glume, 
referring to the equal glumes. — Tropical and subtropical regions . 
Perennial ; stems erect or ascending. Leaves flat, rough, 
narrowly lanceolate ; sheaths hairy along the margins. Ligule a 
fringe of hairs. Spikelets numerous, globose, glabrous or mi- 
nutely pubescent, ~ in., 2-flowered, stalked, not jointed at the 
base, scattered along the very slender branches of a loose, spread- 
ing panicle. Glumes 4, nearly equal, hemispheric ; second empty ; 
third sessile, containing a male, female or 2-sexual flower ; fourth 
minutely stalked, jointed at the base, containing a 2-sexual flower. 
Stamens 3. Styles 2, free nearly to the base. Grain free within 
the hardened glume and pale. 
Leaves J-f in. broad. Panicle 6-14 in. . . . .1.7. aliens. 
Leaves in* broad. Panicle 2-4 in. . . . .2. 7. himalaica. 
1. Isachne albens, Trin. ; FI. Br. Ind. vii. 22. Stems 1-4 ft., 
erect, often branched. Leaves 2-12 xi~§ in. Spikelets pale 
green or nearly white. Panicle 6-14 in. 
Simla. — Occasional in the plains and ascending to 6000 ft. — China, Malaya. 
*2. Isachne himalaica, Hook. f. ; FI. Br. Ind. vii. 23. Stems 
1- 2 ft., often ascending from a decumbent base. Leaves 
2- 12 in. Spikelets green or pale purple. Panicle 2-4 in. 
