270 cLXxm. GRAMTNE^;. (J. B. Hooker.) 



77. ZENK.ERIA, Trin. 



Tall, perennial, long-leaved grasses. Spikelets small, panicled, 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. elegrans, 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. Cat. Ceyl. PI. 108. Amphi- 

 donax Heynii, Nees in Wight Cat. n. 1747; Steud. Syn. Gram. 97 ; Thivaites 

 Enum. PI. Zeyl. 370. A. tenella, Wight $ Am. ex Steud. I c Pappo- 

 phorum ? Wall. Cat. n. 8903. 



SOUTHERN DECCAN PENINSULA, Heyne, &c. BURMA, Kurz. CEYLON, Thivaites, 

 &c. 



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

 stem or longer, strict, coriaceous, convolute, rarely flat, glabrous or sparsely hairy ; 

 sheaths coriaceous; ligule rounded. Panicle 6-8 in.; rachis flexuous; branches 

 filiform, smooth. Spikelets trj-j i Q - pedioelled, white; gl. I and II ovate, hyaline, 

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

 villous, 7-9-nerved ; IV 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. Cat. Ceyl. PI. 108. Amphidonax 

 obtusiflora, Thwaites Enum. PI. Zeyl. 370. 



CEYLON ; at Batnapoora, Thwaites. 



Stems 3-5 ft., glabrous. Leaves 2 ft. by f-1 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 -^-^ i n -> & s broad as long ; gl. I and II ovate, apiculate by the 

 strong excurrent nerve, glabrous; III and IV rather longer, sides and callus viflous ; 

 palea as in Z. elegans. 



78. COELACHNE, Br. 



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

 volute. Spikelets 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 but not 

 beyond IV. Glumes I 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 0? Stamens 3 ; anthers long, narrow. 

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



C. pulchella, Br. Prodr. 187. 



-NEPAL, Wallich, KHASIA and MUNNEPORE HILLS, alt. 4-6000 ft., BURMA, 

 CENTRAL and SOUTHERN INDIA, and CEYLON. DISTRIB. Trop. Asia, Australia, 

 and Madagascar. 



