414 geaminej:. [Ichnanthus. 



1. I. pallens, Mmro. A weak decumbent branching grass, creeping 

 and rooting at the lower nodes, 1 to 2 ft. long, and usually more or less pubes- 

 cent. Leaves rather broadly lanceolate, 2 to 3 in. long, rounded or cordate 

 at the base. Panicle 3 or 4 in. long, the branches slender, but not very 

 spreading. Spikelets scattered, pedicelate or nearly sessile, fuU 2 hnes long. 

 Outer glumes lanceolate, the lowest about i shorter than the second, and both 

 empty,, the third rather shorter, usually with a male flower. Terminal flower- 

 ing glume about half as long, shortly stipitate, obtuse and coriaceous, with a 

 small scar or depression on each side at the base, indicating the scales of the 

 other s^eKies.rT-Panifium pallens, Sw. ; Kunth, Enum. i. 89. 



Hongkong, Wright. A common weed in tropical America, occurring also in many parts 

 of tropical Afirica and Asia. 



7. ISACHNB, Br. 



Spikelets 2-flowered, the upper flower female or rarely hermaphrodite, the 

 lower male or sometimes hermaphrodite, and both articulate on the rhachis. 

 Outer empty glumes 2, nearly equal, and often very deciduous. Both the 

 flowering glumes, as weU as the palese, of a firmer consistence than the outer 

 ones, all awnless. Grain enclosed in the glumes and palea as in Panicum, 

 but very frequently those of both flowers attain maturity. Inflorescence of the 

 smaU-flowered paniculate Panicums, except that the articulation of the spike- 

 let is usually above, not below the insertion of the outer glumes. 



A small tropical genus, common to both the New and the Old World. 



Panicle with very numerous short capillary branches. Spikelets about 

 i line long 1. /. pulchella. 



Panicle loose. Spikelets f to 1 in. long. 



Leaves narrow-lanceolate, very rough. Outer glumes glabrous ... 2. I. aiutralis. 

 Leaves ovate, not 1 in, long. Outer glumes pubescent 3. J. i 



1. I. pulchella. Roth, Nov. PI. &pec. 58. Stems slender, creeping, 

 branching, ascending sometimes to near 1 ft. Leaves ovate, seldom 1 inch 

 long, deeply cordate, rough, elegantiy marked with numerous parallel veins, 

 the edges bordered by long hairs or bristles, the sheaths very hairy. Panicles 

 ovate, 1 to \\ in. long, with numerous capillary but stiff spreading branches. 

 Spikelets about i line long, the 3 outer glumes falling off very early. Flower- 

 ing glumes pubescent, the lower flower usually male, but sometimes both 

 flowers are fertile. — Panicum miliaceum, Trin. ; Kunth, Enum. i. 113. Grayia 

 elegans, Nees in Steud. Syn. Gram. 119. 



Hongkong,, Wright, B<i.rliind. In Ceylon, the Indian Peninsula, Malacca, and Silhet. 



2. I. australis, Br. Prod. 196. Stems rather slender, decumbent, 

 creeping and rooting at the lower nodes, ascending to 1 ft. or more. Leaves 

 lanceolate, very rough with a minute pubescence. Panicle ovoid, spreading, 

 1 to 2 in. long, rather loose. Spikelets aU pedicellate, obtuse, nearly 1 line 

 long. Outer glumes glabrous. Lower flower usually male, with a glabrous 

 glume, the upper one stipitate, female, and pubescent. Pedicels mostly marked 

 with a pellucid discoloration or gland. — hachne miliacea of most modem au- 

 thors, but probably not of Roth. Pankum atrovirens, Tiin. ; Kunth, Enum. 

 i. 127. P. bataviowm, and P. Bmjammi, Steud. Syn. Gram. 96. 



