GRASS FAMILY 143 



lone, Braunton 1209; Greenfield, LecTcenby in 1896; Pomona, Davy 2951; Lugonia (Redlands), 

 Parish 2484. 



Eefs. ERAGROSTIS ORCTJTTIANA Vasey, Contr. Nat. Herb. 1: 269. 1893, type from Chollas 

 Valley, San Diego, Orcutt 1313. Eef erred to E. pilosa by Abrams (Fl. Los Ang. 45. 1904). 



5. E. megastachya Link. Annual, strong-scented when fresh; culms erect 

 or ascending from a decumbent base, rather flaccid, freely branching, 8 inches 

 to 2 feet high ; blades 2 to 6 inches long, l^ to 3 lines wide ; panicles greenish 

 lead-color, 2 to 6 inches long, rather densely flowered ; spikelets 2% to 7 lines 

 long, ly^ lines wide, 10 to 40-flowered, the florets closely imbricated ; pedicels 

 and keels of the acute glumes and lemmas sparingly glandular; lemmas thin, 

 the lateral nerves prominent. 



Fields, roadsides and waste places, a common weed, throughout the U. S. and 

 Mexico, introduced from Europe. Middle Tule, Purpus 5614; Los Angeles, 

 Davidson; San Bernardino, Parish. 



Refs. ERAGROSTIS MEGASTACHYA Link, Hort. Berol. 1: 187. 1827. Poa megastachya 

 Koeler, Descr. Gram. 181. 1802. Briza eragrostis L. Sp. PI. 70. 1753 (not Poa eragrostis 

 L.). Eragrostis major Host, Gram. Austr. 4: 14. pi. 24. 1809; Abrams, Fl. Los Ang. 45. 

 1904. E. poaeoides Beauv. var. megastachya Gray, Man. ed. 5. 631. 1867; Thurb. in Wats. 

 Bot. Gal. 2: 315. 1880. E. minor Host var. megastachya Davy in Jepson, Fl. W. Mid. Cal. 

 60. 1901. 



E. MINOR Host. (Fl. Austr. 1: 135. 1827) is mentioned by Davy (Jepson, 

 Fl. W. Mid. Cal. 60. 1901) and by Thurber (Wats. Bot. Cal. 2: 315. 1880, as E. 

 poaeoides Beauv.) but the specimens probably belong to E. pilosa Beauv. 



6. E. pilosa Beauv. Annual; culms erect, decumbent at base or prostrate- 

 spreading, 6 inches to 1^2 feet high, diffusely branched at base ; sheaths spar- 

 ingly pilose at summit ; blades 1 to 4 inches long, 1 to 1% lines wide ; panicle 

 diffuse, 3 to 8 inches long, the lower axils sparingly bearded ; spikelets 5 to 18- 

 flowered, becoming linear, 2 to 4 lines long, % to % line wide, equaling or 

 shorter than the pedicels ; glumes 1-nerved, smooth except the keels, the first 

 V 2 line, the second % line long ; lemmas smooth, slightly scabrous on keel, the 

 lower about % line long, 14 line wide, the lateral nerves distinct but not 

 prominent. 



Fields, waste places and open ground, San Luis Obispo and Tulare Co. south- 

 ward; extends from Maine to Minnesota and south to Mexico. Introduced 

 from Europe but also apparently native in some localities. 



Refs. ERAGROSTIS PILOSA Beauv. Ess. Agrost. 162. 1812; Abrams, Fl. Los Ang. 45. 1904. 

 Poa pilosa L. Sp. PI. 68. 1753. 



E. ALBA Presl, Rel. Haenk. 1: 279. 1830. The type locality as published is "Monte-Rey 

 Calif orniae. " The type specimen in the Bohemian National Museum at Prague is labeled, 

 ' ' Regiomontane ' ', which would indicate that the specimen came from Peru, as many of 

 Haenke's specimens from Peru are labeled in this way. As indicated by Scribner (Rep. Mo. 

 Bot. Gard. 10: 43. pi. 44. 1899), the Haenke specimen appears to be Poa pastoensis H.B.K. 

 (see Kunth, Rev. Gram. pi. 145) the type locality of which is Peru. The labels on Haenke's 

 type specimens are scanty and confusing, and some evidently have been interchanged. The 

 specimens in the Gray Herbarium mentioned under E. alba by Thurber (Wats. Bot. Cal. 2: 315. 

 1880) are all Eragrostis pilosa. 



7. E. limbata Fourn. Resembles E. pilosa, differing in its relatively smaller 

 panicles and larger spikelets; lower lemma 1 line long, % line wide. 



Mesas, San Diego Co. (Jamacha, Cariby] to Mexico. 



Refs. ERAGROSTIS LIMBATA Fourn. Mex. PI. 2: 116. 1886. Mentioned without description 

 by Hemsley (Biol. Centr. Am. Bot. 3: 573. 1885). 



8. E. hypnoides B.S.P. Annual, extensively creeping; culms slender, 8 

 inches to iy 2 feet long, with short, erect or ascending, panicle-bearing branches, 



