ii8 



Memoirs Bcniicc I'. Bishop Muscimi 



3. Poa pratensis L. Sp. PI. 67. 1753. Kkntuckv v.lvz grass. 



Perennial from creeping rhizomes ; culm.s tufted, 30 to fo cm. tall, terete or slightly flat- 

 tened : sheaths smooth, compressed: lignle about 2 mm. long; blades soft, flat or folded, the 

 basal often elongate: panicle pyramidal, open, mostly 5 to 10 cm. long, the slender branches in 

 somewhat remote fascicles of 3 to 5. ascending or spreading, naked at base, some of them short ; 

 spikelets crowded. 3 to 5-flowered, 4 to 5 mm. long: lemmas 3 mm. long, copiously webbed at 

 base, silky pubescent on keel and marginal nerves, the intermediate nerves prominent (fig. 7). 



Grassland ; introduced. Originallv descriljed from Europe. 

 Hawaii: Kanehaka, Kona, Forbes 263. liuinuula Sheep Station, Hitchcock 14450. 

 Kilauea, Hapeman 7. 



An allied hut unidenlified species was collected by Rock near the lake on 

 Manna Kea at about 12,300 feet (no. i_'737). The s])ecies is probably introduced 

 as it has not l)een observe<l elsewhere. The locality is a stopping place on the wav 

 to the summit of Mauna Kea. 



Plant api^earing to produce rliizomes : sheaths retrorsely scabrous as in Poa trlrialis; 

 ligule short and broad, about i mm. lung ; blades flat and broad, some of them 8 mm. wide ; 



Fir.URE 6. — Poa annua. From U. S. Dcpt. Agr. 

 Div. Agrost. Bull. 17, fig. 5.^3. 

 [20] 



