IlilclicDch — The (I'rasscs of llai^'oii iig 



panicle ininiaturo; spikelets few-il()\vcrt'(l, the illumes aciuninate, almost hristle-poiiUeil, a little 

 unequal, the second ahout 4 mm. long'; lemmas copiously wehhed at hase, the keel and marginal 

 nerves villous, the intermediate nerves rather obscure. 



Siphonocoleus sect. nov. 



Sheaths closed ; ligule united at the edges fonuing a tube, a somewhat thickened auricle 

 or tooth extending upwards into the ligule from the sinus of the sheath; culms llatlened, solid. 

 Type /•'()(/ si/^hoiioiilossa llack. Includes tlirce K])ecies from the Hawaiian islands. (Siphon, 

 tube, colciis, sheath.) 



4. Poa mannii ^lunro; IJillebr. I'l. Haw. Isl. 526. 1888. 



Plants perennial without rhizomes; culms tufted, flattened, wiry, glabrous, striate, some- 

 what glaucous, the internodes solid ; sheaths glabrous, striate, mostly shorter than the internodes, 

 closed nearly or quite to the mouth, an auricle continued upward from the sinus for 2 to 3 mm. ; 

 ligule membranaceous, about 0.5 mm. long, the margin fiiubriatc, the divisions i to 3 mm. long; 

 blades flat, lax, as much as 15 cm. long, mostly shorter, 2 to 4 mm. wide, acuminate, glabrous 

 beneath, scabrous on the upper surface, somewhat clasping at the base, the lower finally decidu- 

 ous from the sheaths ; panicle ovate, mostly less than 5 cm. long, the lower branches about 3, 

 ascending, bearing above the middle a cluster of spikelets; spikelets mostly 4 or 5-flowered, flat- 

 tened, about 5 mm. long, pale, greenish or tawny, the rachilla nearly glabrous; glumes glabrous, 

 narrow, acuminate, slightly unequal, about 3 mm. long, 3-nerved, the first in some spikelets 

 faintly nerved; leiumas 3 to 4 mm. long, acute, more or less webbed at base, the keel and lateral 

 nerves villous on the lower ]iart, the intenuediatc nerves not very iiromincnt (fig. 8). 



Wet cliffs. Originally described from "Kauai, Wainiea (M. & B. 274)." 

 Kauai: Olokelc (lulch, Hitchcock 15229; Faurie 1306. Wainiea, 2000-3000 feet. 



Mann & Brigham 274 (the type collection of Poa iiiaiiiiii Munro). 



The indigenous species of Poa are not sufficiently known. One of the speci- 

 mens cited (Faurie 1306) has a few hairs in the axils of some of the branches of 

 the inflorescence. 



5. Poa siphonoglossa Hack. Repert. Nov. Sp. Fedde 11:24. 1912. 



Plants perennial without creeping rhizomes; culms solid, flattened, smooth, striate, tufted, 

 the tufts often large, depending from banks in long masses as much as 4 meters long, the old 

 culms naked and rushlike, bearing bladeless sheaths, the internodes much elongate, as much as 

 65 cm. long; sheaths glabrous, closed to the mouth, shorter than the internodes, on the older 

 culms nuich shorter ; ligule membranaceous, more or less dentate, 2 to 3 mm. long, continuous 

 across the mouth except where ruptured by the splitting of the sheath ; blades flat, lax, mostly 

 less than 10 cm. long, 2 to 3 mm. wide, smooth beneath, scabrous on upiier surface, deciduous 

 from the sheaths on the old culms ; panicle ovate, luostly less than 5 cm. long, the lower branches 

 about 5, ascending, the whole panicle rather few-flowered; spikelets flat, 2 to 5-flowered, 4 to 7 

 mm. long, the rachilla pubescent ; gluiues narrow, acuminate, glabrous, 3-nerved, a little unequal, 

 the second about 4 mm. long; lemmas narrow, acute, 4 to 5 mm. long, not webby at base, scab- 

 rous on the keel and marginal nerves, or scabrous-pubescent toward the base, the intermediate 

 nerves rather prominent ; palea scabrous-ciliate on the keels, nearlv as long as the lemma, 

 2-toothed (fig. 9). 



Shady banks along a ridge. Originally described from Kauai "jji-ope 

 Waimea, looo m. s. m. et ])rope Holokele, Mart, njio, leg. V. Faurie (no. 1305 

 et 1306)." No. 1305 may be taken as the tyi)e. 



Kauai: Maulili, near Kalmluamano, Tlitchcock 15536, Rock ()Oi8. 



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