30 MISC. PUBLICATION 243, U.S. DEPT. OF AGRICULTURE 
JAMAICA: Blue Mountain Peak, Harris 12663; Hitchcock 9371. 
Harti: Massif de la Selle, Ekman H 6875. Mission, Leonard 3848. 
Morne Tranchant, Picarda 1019. 
Poa TrRIvVIALIS L., Sp. Pl. 67. 1753. A specimen from Bermuda 
(Collins 340) may be this species. 
3. Poa pratensis L., Sp. Pl. 67. 1753. Europe. 
KENTUCKY BLUEGRASS. 
Erect perennial, with creeping rhizomes; culms 30 to 50 cm tall; 
panicles open, 4 to 10 cm long, the lower branches 3 to 5, spreading; 
spikelets 3- to 5-flowered,4 to 5mm long; lemmas 3 mm long, copiously 
webbed at base, silky-pubescent on keel and marginal nerves, the 
intermediate nerves prominent (fig. 11). 
Pastures and open ground in temperate regions; introduced from 
Europe. A standard grass for pastures and lawns in the cooler parts 
of the United States, but not suited to the West Indies. 
Brrmupa: Brown 670. 
JAMAICA: Blue Mountain Peak, Orcutt 5311. 
Harti: Massif de la Selle, Ekman H 1156, H 7821; Buch 1354, 1414. 
Mission, Leonard 3850. Furey, Leonard 4371; Cook, Scofield, and 
Doyle 33. 
11. BRIZA L., Sp. Pl. 70. 1753. QuUAKING GRAss 
Spikelets, several-flowered, broad, often cordate, the fiorets crowded 
and spreading horizontally, the rachilla disarticulating above the 
glumes and between the florets, the uppermost floret reduced; glumes 
about equal, broad, papery-chartaceous, with scarious margis; 
lemmas papery, broad, with scarious, spreading margins, cordate at 
base, several-nerved, the nerves often obscure, the apex, in the species 
below, obtuse or acutish; palea much shorter than the lemma. 
Annuals or perennials, with erect culms, flat blades, and usually 
open, showy panicles. 
Spikeletsfew);L em awe... Teese ee ee 1. B. MAXIMA. 
Spikelets numerous,.0-5 cm wide: 222). a eee 2. B. MINOR. 
1. Briza maxima L., Sp. Pl. 70. 1753. Europe. 
Big QUAKING GRASS. 
Slender annuals 30 to 60 cm tall with flat roughish blades and few- 
flowered panicles, the large handsome spikelets nodding on long 
capillary pedicels (fig. 12, B). 
Open ground and grassland, introduced occasionally in America. 
Brermupa: Brown 679. 
JAMAICA: Cinchona, Orcutt 5477; Harris 11274, 11621; Aitch- 
cock 9713. Hardware Gap, Harris 10909. 
2. Briza minor L., Sp. Pl.70. 1753. Europe. LitrLe @UAKING GRASS. 
A weak-stemmed annual 30 to 50 cm tall with thin flat scabrous 
blades and loosely flowered panicles, the branchlets subcapillary but 
stiffly spreading, the spikelets triangular-ovate, nodding (fig. 12, A). 
Open ground, sparingly introduced in America. 
JAMAICA: Cinchona, "Hitchcock 9710; Harris 11414, 11603. Abbey 
Green, Mazon 1459; Orcutt 3242; Hitchcock 9356 (Amer. Gr. Nat. 
