MANUAL OF THE GRASSES OF THE WEST INDIES i 
Culms erect. 
Spikelets i-flowered, in a long dense terminal panicle; culm herbaceous. 
5. NEUROLEPIS (p. 23). 
Spikelets several- to many-flowered, sessile in clusters, these somewhat remote 
on a common axis; culms woody. 
Keels of palea projecting but not winged____--__-___ 1. Bamepusa (p. 14). 
Kecistorspaiea: winged. 225 Sse lG 2s Sy 2 GOTT SOR 2. GuUADUA (p. 14). 
TRIBE 2. FESTUCEAE 
Spikelets, more than 1-flowered, usually several-flowered, in open, 
narrow, or sometimes spikelike panicles (rarely in racemes); lemmas 
awnless or awned from the tip, rarely from between the teeth of a 
bifid apex; rachilla usually disarticulating above the glumes and be- 
tween the florets. 
Lemmas cleft at the summit into numerous awns; panicle contracted, elongate. 
PAPPOPHORUM (p. 59). 
Lemmas with a single awn or awnless. 
Spikelets (at least the pistillate) with copious long silky hairs on the lemmas or 
the rachilla; tall reeds with large plumy panicles. 
Spikelets unisexual; pistillate spikelets hairy, the staminate glabrous; plants 
CHOC CLOUGH mare cteaik Beye eA ee ee 17. GYNERIUM (p. 49). 
Spikelets perfect. 
icemmasphainy -rachilla, elabrous) =... 0-2 255-222— 18. ARUNDO (p. 50). 
Lemmas glabrous; rachilla hairy____.__.____- 19. PHRAGMITES (p. 50). 
Spikelets not long-hairy, the hairs if present much shorter than the lemma. 
Glumes leaflike; spikelets concealed in the upper sheaths; plants dioecious. 
13. MoNANTHOCHLO# (p. 45). 
Glumes not leaflike; spikelets exposed. 
Stigmas elongate, wiry, coiled, tendrillike; spikelets in a long 1-sided 
TACCIN GE ee ye PRT ay, es Oe 4! oe ere eee 21. STREPTOGYNE (p. 55). 
Stigmas not elongate nor wiry. 
Blades broad, ovate to elliptic, showing transverse veins between the 
nerves. 
Spikelets 3- to 5-flowered; glumes broad, truncate; panicles small. 
23. ZEUGITES (p. 58). 
Spikelets 1- or 2-flowered, the second floret commonly obsolete, the 
elongate rachilla only present; glumes acuminate; panicles large, 
Giinnise fees sy bk tops bed 22. ORTHOCLADA (p. 55). 
Blades linear, no transverse veins showing. 
Spikelets in 1-sided dense clusters, these at the ends of the few stiff 
PIAMECLORD EAN CHES) jac 20 25 2 SB 16. Dacty.is (p. 49). 
Spikelets not in 1-sided clusters. 
Lemmas 3-nerved. 
INervesspulbescent= =) Sete. se She 20. Triopia (p. 53). 
Nerves telabrouses 4 vinta sey eorle dios s 12. ERAGROSTIS (p. 33). 
Lemmas 5 or more nerved. 
Lowest 1 to 4 lemmas empty; spikelets firm, strongly compressed. 
Plants hermaphrodite, usually more than 50 cm tall. 
15. UNIOLA (p. 48). 
Plants dioecious, usually less than 30 em tall. 
14. DustTicHuis (p. 47). 
Lowest lemmas fertile. 
Florets horizontally spreading; lemmas cordate at base. 
it Se BRmAy(ps30): 
Florets ascending; lemmas not cordate. 
Lemmas awnless; spikelets small. 
Spikelets ovate or elliptic, few-flowered; lemmas keeled. 
10. Poa (p. 29). 
Spikelets linear, many-flowered; lemmas rounded on the 
falnercksveeey 2 2 ee ee 23 9. ScLEROPOA (p. 28). 
Lemmas awned or mucronate (if awnless the spikelets large). 
AS yirom bhexuipo= == )e os <5 2 8. FrEstruca (p. 26). 
Awn from a bifid apex or wanting___7. Bromus (p. 24). 
