Hitchcock — Tlic Grasses of Hazvaii 173 



Along a moist cut ; introduced. Originally described from India. 

 Hawaii; Hilo, Hitchcock 14186. 



2. Syntherisma chinensis CNees). 



Paspalitm chiiiciisis Xees in Hook. & Arn. Bot. Beechey Voy. 231. 1841. 



Paspalmii iniiiutiflonnn Steucl. Syn. PI. Glum, i -.ly. 1854. Not Pasl^aluni ininuflflonini 

 Desv. 1 83 1. 



Syuthcrisiiia hellcri Nash, ]\Iinn. Bot. Stud, i 798. pi. 44. 1897. 



Culms erect, or decumbent at base, glabrous, slender, 20 to 60 cm. tall : sheaths glabrous, 

 compressed-keeled; ligule a short membrane less than i mm. long; blades linear, 5 to 15 cm. 

 long, 3 to 5 mm. wide, glabrous, scabrous on the margins, sparingly pilose at base ; racemes 

 2 to 6, slender, often curved, 4 to 10 cm. long, approximate at the summit of the culm, the 

 rachis narrowly winged, glabrous, scabrous on the margins; spikelets elliptic, 1.5 mm. long, the 

 longer pedicel terete, scaberulous, less than i mm. long ; first glume wanting ; second glume and 

 sterile lemma about equal, obscurely appressed-silky between the nerves, the glume 3-nerved, 

 the lemma 5-nerved ; fruit acute, as long as spikelet, brown (fig. 61). 



This species was referred to S. longiflora (Retz.) Skeels by Hitchcock and 

 Chase," to Digitaria I'iolasccns Link by Merrill,^* and to Pan'icuin fiUforinc L. bv 

 Hillebrand" as is shown by a specimen in the Gray Herbariitm from a ''Valley 

 behind Honolulu, Oahu," collected by the Wilkes Expedition and cited by 

 Hillebrand. 



A weed in fields, grassland and waste places ; introduced. Originally 



described from China. 



Kauai: Olokele Gulch, Hitchcock 15260. 



Oahu: Honolulu, Hitchcock 13712: Hauula. Farmer 16. Kalihi Valley. Hitchcock 

 14107. Mt. Tantalus; Hitchcock 13863. Schofield Barracks, Hitchcock 

 13941, 13977. Pfiuoa, Heller 2321 (type collection of Syiifherisma hellcri). 



Molokai: Pukoo, Hitchcock 15065. Kahanui, Forbes 261. 



INIaui : Olinda, Hitchcock 14937. 



Hawaii: I\ilauea, Faurie 1300. Hilo, Hitchcock 14169, 14188; Newell in 1917. 



3. Syntherisma pruriens fTrin.) Arthur. Torreya 19:83. 1919. 



Paiiiciiiu pruriens Trin. Gram. Pan. jy. 1826. 



Di(;ifana consaiigiiiiica Gaud, in Freyc. Voy. Uran. Bot. 410. 1830. 



Digitaria pruriens Busse in ]\'Iiq. PI. Jungh. 379. 1854. 



Paspaluin sanguinalc var. pruriens Hook. f. Fl. Brit. Ind. 7:15. 1896. 



Syntherisma eonsanguinea Skeels. U. S. Dept. Agr. Bur. PI. Ind. Bull. 2^2:^^,. 1913. 



Culms decumbent at base, as much as i meter tall, glabrous ; sheaths pilose, often densely 

 .so; ligule rather prominent, membranaceous, 2 mm. long; blades flat, lax, mostly 10 to 15 cm. 

 long, about 5 to 10 mm. wide, scabrous, hispid or sometimes velvety-pubescent ; racemes several 

 at the summit of the culm, erect, scarcely spreading even at maturity, 10 to 15 cm. long; rachis 

 winged, the margins scabrous ; spikelets lanceolate, acute, 3 mm. long ; first glume wanting, or a 

 mere ridge, sometimes as much as 0.2 mm. long; second glume oblong, obtuse, about i mm. 



"Hitchcock, \. S., and Chase, Agnes, Grasses of the West Indies: Contr. U. S. Nat. Herb. Vol. l8, 

 p. 294, 1917. 



"Merrill, E. U., An enumeration of Philippine Graniinae: Philippine Jour. Sci. \^ol. i, Snppl. S, 

 p. 347, 1906. 



'■' Op. cit., p. 49.> 



[75] 



