270 chxxin. gr^mine^. (J. D. Hooker.) 



77. ZENKERXA, Trim. 



Tall, perennial, long-leaTed grasses. . Spikelets small, panipled, 2-fld. 

 (both fl. perfect), not jointed on their pedicels; rachilla jointed at the 

 hairy base, not produced beyond gl. IV. Glumes 4, I and II empty, sub- 

 equal or unequal, 1-nerved, keeled, acute, persistent ; III and IV equal, 

 obtuse or acuminate, many-nerved ; palea as long as its gl., broad, keels 

 strongly ciliate or hirsute. Lodicules 2, ovate, denticulate. Stamens 3. 

 Styles short, distinct. Grain unknown. — Species the following. 



1. Z. eleg'ans; Trin. in Linnxa, xi. (1837) 150, t. 3 ; leaves long 

 narrow, panicle thyrsiform, branches erect, gl. I and II unequal. III and 

 IV acuminate much longer than II. Trim. Oat. Geyl. PI. 108. Amphi- 

 donax Heynii, Nees in Wight Oat. n. 1747 ; Steud. Syn. Gram. 97 ; Thwaites 

 Enum. PI. Zeyl. 370. A. tenella, Wight Sr Am. eoo Steud. I. c. — Pappo- 

 phorum p Wall. Cat. n. 8903. 



SouTHESN Deooan PENiNSuiiA, Heyne, &c. Bubma, Kuns. Cetion, Thwaites, 

 &c. 



Stem 2-3 ft., as thick as a crow-quill, rigid, base woody. Leaves as long as the 

 stem or longer, strict, corinceons, convolate, rarely flat, glabrous or sparsely hairy; 

 sheaths coriaceous; ligule rounded. Fanicle 6—8 in.; rachis flexuoas; branches 

 filiform, smooth. Spikelets -nj-J in., pedicelled, white; gl. I and II ovate, hyaline, 

 1-nerved ; I shortest, midrib very strong, exeurrent ; III and IV lanceolate, sparsely 

 villous, 7-9-nerved ; IT longest and most acuminate ; callus bearded with long 

 straight hairs ; palea as broad as the gls., hirsute. Anthers long, narrow. 



2. Z. obtusiflora, Benth. in Journ. Linn. Soc. xix. (1881) 93; leaves 

 broadly linear-lanceolate narrowed at both ends, panicle pyramidal, 

 branches widely spreading, gl. I and II unequal or subequal. III and IV 

 obtuse not longer than II. Trim, Gat. Geyl. PI. 108. Amphidonax 

 obtusiflora, Thwaites Enum. PI. Zeyl. 370. 



Cetlon ; at Eatnapoora, Thwaites, 



Stems 3-5 ft., glabrous. Leaves 2 ft. by }-l in., acuminate, pungent, glabrous, 

 coriaceous ; ligule very short, densely hairy. Panicle 6-8 in. ; branches capillary, 

 solitary or 2-nate ; pedicels longer than the spikelets, with a glandular callus at the 

 base. Spikelets ^-^ in., as broad as long; gl. I and II ovate, apioulate by the 

 strong exeurrent nerve, glabrous ; III and IV rather longer, sides and callus villous ; 

 palea as in Z. elegans, 



78. COEI.ACKNI:, Br, 



A small leafy very variable marsh grass. Leaves short, flat or con- 

 volute. Spiloelets 2-fld. (both fl. perfect or upper imperfect) in open or 

 contracted or spiciform panicles, not jointed on the pedicels, not awned; 

 rachilla jointed at the base, produced between gl. Ill and IV bat not 

 beyond IV. Glumes 1 and II broad, concave, obtuse, persistent, empty, I 

 the largest ; III much longer, subsessile, coriaceous, glabrous, except the 

 shortly bearded callus ; palea as long, coriaceous ; IV much smaller and 

 palea more or less hairy. Lodicules P Stamens 3 ; anthers long, narrow. 

 Ovary ovoid, stigmas free. Grain free within the gl. and palea. 



C. pulchella, Br. Prodr. 187. 



Nepal, WalUch, Khasta and Munnepoee Hills, alt. 4-6000 ft., Bdbma, 

 Centeai and Southben India, and Ceylon. — Distbie. Trop. Asia, Australia, 

 and Madagascar. 



