140 CLXXIII. GRAMINE^E. (J. D. Hooker.) [Ischcemum. 



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

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

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

 semisagittatum, and makes of it a subgenus of Ischcemum, characterized by the 

 solitary spike, stout joints, and awnless spikelets, closely connecting Ischcemum with 

 Eottboellietp. 



I. LONGISPICATUM, Munro ex DutTiie Grass. N.W. Ind. 18, name only. 



38. ERElKOCHXiOA, Buse. 



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

 flat, secund, 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 ; 1L ovate-lanceo- 

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

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

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

 long. Stigmas short, feathery. Species 8, E. Asia and Australia. 



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

 oblong with 2 fan-shaped terminal wings. JEgilops ciliaris, Koen. in Neue 

 Schrift. Ges. Nat. Berl. iv. (1810) 210; Roeui. $ Sch. Syst, ii. 772 ; Griff. 

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

 muricata, Retz. Obs. ii. 27. Ischsemum pectin atum, Trin. in Mem. Acad. 

 Petersb. &er. vi. ii. (1833) 296 ; Wall. Gat. n. 8847 ; Thwaiiea JEnum. PI 

 Zeyl. 436; Trim. Cat. Geyl. PL 107. I. ciliare, Nees in Herb. Wight. 

 n. 1717 (not of Wight Cat.). Andropogon pectinatus, Steud. Syn. Gram. 

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



SOUTH DECCAN PEKINSULA, Koenig, &c. CEYLON ; Trincomalee, Qlenie. 

 DISTBIB. Australia. 



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

 apiculate. Spike 2-5 in., linear ; .rachis glabrous, brittle, not excavated. Spikelets 

 $ in.; gl. I nearly orbicular, dorsally slightly convex, many-nerved, wings crenate ; 

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

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



2. E. bimaculata, Hack. Monogr. Androp. 265 ; gl. I elliptic sub- 

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

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



UPPER BUBMA ; near the Serpentine Mines, Griffith. DISTRIB. Australia. 



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

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

 spines, callus puberulous. 



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

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

 Ceyl. PL 107. Ischsemum pectinatum, Wight Cat. n. 1717. I. falcatum, 

 Tkw. JEnum. PL Zeyl. 436. 



CEYLON, Walker, 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, Hack. Monogr. Androp. 264 ; gl. I narrowly oblong 

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

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



