252 CLXiii. GRAMiNE^. {Oryza. 
Padi [Oryza sativa, Linn.), a native of India, is extensively cultivated here 
in many forms. 
Glume III strongly ciliate; leaves narrow . . • (i) 0. fatua 
Glume III keeled not ciliate; leaves broad , . • {2) 0. Ridleyi 
Glume III armed with white cilia; leaves broad . . (3) 0. latifolia 
(1) O. fatua Koen. Trin. Mem. Acad. Petersb. Ser. 6, ii. ii, 
p. 177. 
Tall rather slender grass, with narrow leaves. Panicle about 
6 in. long; spikelets few, rather distant, -18 in. long, peduncles 
shorter, slender. Glumes I and II very short lanceolate acumin¬ 
ate; glume III minutely granular, strongly spined along edges. 
Awn long, -25 in. long. Hab. Selangor, Klang (Burkill). 
var. longe-aristata, a form with much less spiny glumes and awn 
3 in. long. Hab. Malacca, Batu Berendam (Burkill). 
These plants are perhaps the original wild form of Oryza sativa, L., but 
are more likely reversions of cultivated rice to the wild state. The long- 
awned form is the plant described as Oryza sativa in Hook. fit. F.B.J. vii. 92, 
wild in India. 
(2) O. Ridleyi Hook. fil. F.B.I. vii. 93; Ridl. Mat. hi. 148. 
A weak grass 3 to 4 ft. tall. Leaves linear acuminate, 6 to 
14 in. long, -25 to i in. wide, glabrous; ligules ciliate. Panicle 
6 to 12 in. long, nodding, with parallel, slender branches 4 to 6 in. 
long, alternate or sub-opposite. Spikelets *25 in. long exclusive 
of awn. Glumes I and II setaceous scabrid; glume III boat¬ 
shaped keeled spinulose, awn nearly as long. Palea keeled spinu- 
lose not awned. Hab. In waste meadows and wet shady spots 
by rivers. Johor, Tebing Tinggi and Kwala Sembrong. Pahang, 
Pekan. Malacca, Chabau; Tebong, river bank (Ridley). Selan¬ 
gor, Kajang Road. Perak, Kwala Kangsa (Ridley). Distrib. Borneo. 
(3) O. latifolia Desv. Journ. Bot. i. (1813) 77; Ridl. Mat. 
hi. 148. 
Culms 2 to 3 ft. tall. Leaves 14 in. long, -5 in. wide, edges 
scabrid; ligule rather long, ciliate. Panicle 6 to 8 in. long, branches 
slender appressed. Spikelets elliptic-oblong, -i to -12 in. long. 
Glumes I and II lanceolate setaceous scabrid; glume III boat¬ 
shaped granulate and covered with white processes, channelled on 
both sides; awn *5 in. long, scabrid. Palea similar but shortly 
cuspidate; Hab. Wet fields. Johor, Sempang Kiri and Parit 
Jawa. Perak, Kwala Dipang. Kedah, base of Gunong Geriang 
(Ridley). Distrib. Tropics of Africa, Asia, America. Native name : 
Padi Burong. 
70. LEERSIA, Sw. 
Tall slender marsh grasses with narrow herbaceous leaves. 
Panicle terminal lax of pale green spikelets articulate on thin 
pedicels. Glumes I and II absent; glume III boat-shaped, flat, 
coriaceous, with a ciliate keel, not awned. Stamens 6 (or fewer). 
Grain narrow, oblong. Species about 7, tropics and temperate 
regions. 
