Hitchcock — The Grasses of Hazcaii 127 



A weed in open ground; introduced. Originally described from India. 

 Oahu: Honolulu, Faurie in 1909; Hitchcock 13723, 14074, 13720; Newell in 1917. 

 Waikiki, Heller 1962. 



2. Eragrostis cilianensis (All.) Link, Mgn. Lut. I\Ialpighia 18:386. 1904. 



Poa cilianensis All. Fl. Pedem. .2:246. 1785. 



Eragrostis major Host, Gram. Aiistr. 4:14, pi. 24. 1809. 



Eragrostis megastachya Link, Hort. Berol. i :i87. 1827. 



Plants annual, strong-scented when fresh ; culms erect or ascending from a decumbent 

 base, rather flaccid, freely branching, 20 to 40 cm. tall; blades 5 to 15 cm. long, 3 to 6 mm. 

 wide; panicles greenish or lead-colored. 5 to 15 cm. long, rather densely flowered; spikelets 

 5 to 15 mm. long, 3 mm. wide. 10 to 40-flowered, the florets closely imbricate; the pedicels and 

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

 prominent (fig. 13). 



A weed in waste ground; introduced. Originally described from Italy. 

 Oahu: Honolulu, Newell in 1917. Waikiki, Hitchcock 13802; Heller 2288. 

 Without locality, INIann & Brigham 71. 



3. Eragrostis falcata (Gaud.) Gaud.; Steud. Xom. Bot. ed. 2. 1:563. 1840. 



Poa falcata Gaud, in Freyc. Voy. Uran. Bot. 408. pi. 25. 1830. [Title page dated 1826.] 



Plants annual; culms tufted, wiry, 5 to 15 cm. tall, glabrous; sheaths glabrous; blades 



short, firm, glabrous, involute ; inflorescence a raceme or simple panicle ; spikelets nearly terete, 



1 to 2 cm. long, I to 1.5 mm. wide, falcate, many-flowered, short-pediceled, the florets closely 

 imbricate, glabrous ; lemmas about 2 mm. long, strongly 3-nerved, tawny, obtuse. 



Represented only by IMann & Brigham 44 from Oahu. Originally described 

 from Australia. 



4. Eragrostis caroliniana (Spreng.) Scribn. Mem. Torrey Club 5:49. 1894. 



Poa caroliniana Spreng. Mant. Fl. Hal. 33. 1807. 



Plants annual; culms erect, decumbent at base, or prostrate-spreading, 15 to 40 cm. tall, 

 diffusely branched at base ; sheaths sparingl}' pilose at the summit ; blades 2 to 10 cm. long, 



2 to 3 mm. wide ; panicle diffuse, 7 to 20 cm. long, the lower axils sparingly bearded ; spikelets 

 5 lo i8-flowered, becoming linear, 4 to 8 mm. long-, i to 1.5 mm. wide, equaling or shorter than 

 the pedicels, appressed along the main branches; glumes i-nerved, smooth except the keels, the 

 first I mm., the second 1.5 mm. long; lemmas smooth, slightly scabrous on the keel, the lower 

 about 1.5 mm. long, 0.5 mm. wide, the lateral nerves distinct but not prominent (fig. 14). 



A weed along road ; introduced. Originally described from North Carolina. 

 Oahu: Honokilu, Fort Shafter, Hitchcock 13843. 

 Hawaii: Hilo, Newell in 191 7. 



5. Eragrostis abyssinica (Jacq.) Link, Hort. Berol. i :i92. 1827. 



Poa abyssinica Jacq. Misc. 2:364. 1781. (Link spells the name abessinica-) 

 Plants annual ; culms erect, slender, glabrous, 50 to 80 cm. tall ; sheaths glabrous, pilose at 

 the throat; blades slender, 10 to 15 cm. long, i to 2 mm. wide, acuminate into a slender point; 

 panicle oblong, open, 15 to 20 cm. long, the lower branches fascicled, pilose in the axils, as much 

 as 10 cm. long, the axis, branches and pedicels scabrous ; spikelets few-flowered, 3 to 6 mm. long, 

 the pedicels slender; glumes acuminate, a little unequal, tiie lower 2 mm. long; lemmas about 

 2 mm. long, minutely scaberulnus on the keel above, as also on the keels of the palea ; caryopsis 

 brown, turgid, oblong, about i mm. long, a little over 0.5 mm. wide, spreading the palea and 

 lemma apart at maturity. 



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