Hitchcock — The Grasses of Hawaii 207 



Dani]) open woods or moist open gronnd; introduced. Originally described 

 from India. 

 Oahu: Mt. Tantalus, near Halfway House, Hitchcock 13877, 14076. Upper 



]\Ianoa \^alle\', Hitchcock 13732. 

 Hawaii: Kukuihaele, Rock 4519. Hilo, Hitchcock 14148, Newell in 1917. 



2. Chaetochloa verticillata (L. ) Scribn. U. S. Dept. Agr. Div. Agrost. Bull. 4:39. 1897. 



Pauicuin vcrticillatuin L. Sp. PI. ed. 2. i :82. 1762. 

 Sctaria verticillata Beauv. Ess. Agrost. 51. 1812. 



Plants annual ; culms erect or decumbent at base, 30 to 60 cm. tall, or even as much as 

 I meter; sheaths keeled, glabrous; blades flat, 5 to 15 cm. long, as much as I cm. wide or even 

 more, scabrous ; panicle cylindric, dense, 2 to 8 cm. long, i cm. wide, somewhat lobed, the 

 crowded branches as much as i cm. long, the bristles below each spikelet 3 to 6 mm. long, 

 retrorsely-scabrous ; spikelets oval, about 2 mm. long; first glume about one-third as long as 

 the spikelet ; second glume slightly shorter than the fruit ; sterile lemma as long as the fruit ; 

 fertile lemma obscurely transversely rugose (fig. 96). 



A weed in fields and waste places ; introduced. Originally described from 

 the Old World. 

 Oahu: Honolulu, Hitchcock 13707, 14065; Newell in 1917. Waikiki, Heller 



1961, 2289. 



3. Cliaetochloa lutescens (Weigel ) Stuntz, U. S. Dept. Agr. Bur. PI. Ind. Inv. Seeds 31 :36, 86. 



1914. 



Panicuiii lutescens Weigel, Obs, Bot. 20. 1772. 



Plants annual ; culms erect or geniculate below, sometimes prostrate-spreading, rather 

 succulent below, as much as i meter tall but usually lower, scabrous below the panicle ; sheaths 

 smooth, compressed-keeled : blades as much as 25 cm. long and i cm. wide, flat, twisted in a 

 loose spiral, the upper surface along the upper half faced downward, acuminate-pointed, often 

 glaucous, toward the base on the upper surface beset with long lax hairs ; panicle dense, evenly 

 cylindric, spikelike, yellow at maturity, mostly 5 to 10 cm. long, about i cm. thick, rounded at 

 the summit, the axis densely pubescent, the branches mostly less than i mm. long, the cluster 

 of bristles below each spikelet usually more than 5, sometimes 20 or more; bristles antrorsely 

 scabrous, yellow, the longer ones 2 or 3 times as long as the spikelets; spikelets about 3 mm. 

 long, oval : first glume about half, the second about two-thirds as long as the spikelet ; sterile 

 lemma equaling the fruit, the palea well developed : fertile floret strongly transversely rugose 

 (fig. 102). 



This species has usually been called Chaetochloa i^laiica (L.) Scribn. or 

 Sctaria f^laiica Beauy., but the basis of those names, Paiiicuin glaucimi L., prop- 

 erly applies to the pearl millet ( Pcnnisctum glaucum ( L. ) R. Br.) 



A weed in fields ; introduced. Originally described from Europe. 

 Hawaii: Waimea, Hitchcock 14461. 



4. Chaetochloa geniculata (Lam.) Millsp. & Chase, Field Mus. Bot. T):i7- iQo.V 



Pauicuin gcniculafuni Lam. Encycl. 4:727 (err. typ. J^J^- ^79^- 



Sctaria pnrpurasccns H. B. K. Nov. Gen. & Sp. 1:110. 1816. 



Pauicuin imbcrhe Poir. in Lam. Encycl. Suppl. 4:272. 1S16. 



Plants perennial, producing short knotty branching rhizomes as nuich as 4 cm. long ; 

 culms erect, spreading or prostrate, tufted or solitary, as much as i meter tall, the base usually 

 hard and wiry ; sheaths keeled ; blades flat, scabrous, villous toward the base on the upper sur- 

 face, mainly straight (not twisted as in C. lutescens), as much as 20 cm. long and 8 mm. wide; 



[ 109 J 



