140 CLXXiii. GEAMiNEiE. (J. D. Hooker.) [Ischcemum. 



lanceolate acute 1-nerved awnless glabrous, palea as long as the gl. Pedicelled 

 spihelet awnless, pedicel very short ; gl. I linear-lanceolate, flat, acuminate mauy- 

 nerved. — The Panjab, at Busahir, Euegel. — Hackel describes this as very like I. 

 $emisagittatwm, and makes of it a subgenus of Isehamum, characterized by the 

 solitary spike, stent joints, and awnless spikelets, closely connecting Isohwmum with 

 SottboeUietf, 



I. LON aispicATUM, Mv/nro ex Duthie Grass. N. W. Ind. 18, name only. 



88. ERUnXOCKXiOA, Biise. 



Perennial grasses. Leaves more or less equitant, rigid. Spikelets 1-fld., 

 flat, BBOund, solitary, sessile at each internode of a terminal narrow com- 

 pressed spike, with a rudimentary pedicelled. Glumes 4, I nearly flat, 

 oblong, smooth, coriaceous, not awned, margins pectinate ; II ovate-lanceo- 

 late, acuminate, chartaceous, 3-nerved ; III hyaline, oblong, obtuse, paleate, 

 male; IV smaller, hyaline, oblong, obtuse, 1-nerved, fem. or bisexual; 

 palea oblong-lanceolate. Iiodicules obliquely truncate. Stamens 3, anthers 

 long. Stigmas short, feathery. — Species 8, B. Asia and Australia. 



1. E. muricata, Hack. Monogr. Androp.262; gl. I broadly ovate- 

 oblong with 2 fan-shaped terminal wings, .fflgilops oiliaris, Koen. in, Neue 

 Schrift.Ges. Nat. BerliY. (1810) 210; Boem. Sf Sch. Syst. ii. 772; GnJ. 

 Notul. iii. 110, Ic. PI. Asiat. t. 158 (excZ. 4 upper left-hand figs.). M. 

 muricata, Betz. Ohs. ii. 27. Ischaemum pectinatum, Trin. in Mem. Acad. 

 Fetersb. tier. vi. ii. (1833) 296 ; Wall. Oat. n. 8847 ; Thwaites Enum. PI 

 Zeyl. 436; Trim. Oat. Geyl. PI. 107. I. ciliare, Nees in Serb. Wight. 

 n. 1717 {not of Wight Oat.). Andropogon pectinatus, Steud. Syn. Oram. 

 369. Eottboellia muricata, Betz. I. c. iii, 12. 



South Deccan Peninsula, Koenig, &c. Cetion; Trincomalee, Olenie.— 

 DiSTKiB. Australia. 



Quite glabrous. Stem 6-18 in., compressed. Leaves 3-6 by i—J in., tips rounded 

 apiculate. ;Spfte 2-5 in., linear ; raohis glabrous, brittle, not excavated. Spilieleti 

 i in. ; gl. I nearly orbicular, dorsally slightly convex, many-nerved, wings creiiate ; 

 spines very many, upcurved, nearly as long as the gl. is broad. Pedicelled spihelet 

 a single lanceolate acuminate coriaceous nerved gl. with thin indexed margins. 



2. E. bimaculata, HacJc. Monogr. And/rop. 265 ; gl. I elliptic sub- 

 acute with 2 small low rounded terminal wings, spines shorter than the gl. 

 is broad. Ischaemum pectinatum, Benth. Fl. Austral, vii. 521. 



Uppek BuemA; near the Serpentine Mines, Griffith. — Distbib. Australia. 



Habit, &c. of E. muricata, but leaves much narrower, narrowed at the obtuse 

 tip ; spikes more slender ; spikelets much narrower, with fewer nerves and shorter 

 spines, callus puberulous. 



3. E. zeylanica, Hack. Monogr. Androp. 263; gl. I eUiptio obscurely 

 winged at the subacute tip, spines longer than the gl. is broad. Trim. Gat. 

 Ceyl. PI. 107. Ischaemum pectinatum, Wight Oat. n. 1717. I. falcatum, 

 Thw. Enum. PI. Zeyl. 436. 



Cbtlon, PToZfer, Thwaites (C.P. 3327). ? Deccan Peninsula, Wight. 

 Habit, size of spikelets, &c. as in bimaculata, of which it is probably only a 

 variety, differing chiefly in the long spines of gl. I and glabrous callus. 



4. E. leersioides, Hach. Monogr. Androp. 264 ; gl. I narrowly oblong 

 acute, spines suberect longer than the gl. is broad. Ischaemum leeraioides, 

 Munro in Proc. Amer. Acad. iv. (1864-5) 363 ; Benth. Fl. Hongk. 425. 



