Hitchcock — The Grasses of Hcra'ciii 159 



thick, mostly plumbeous, interrupted below, the lower branches appressed, somewhat dis- 

 tant, I to 2 cm. long, the upper part dense : lateral panicles produced in the axils of the leaves ; 

 spikelets about 2 mm. long; glumes unec[ual, the first one-fourth as long as the floret, obtuse or 

 truncate, broad, the second about half as long as the floret, acute; lemma and palea equal, 

 nerveless; caryopsis red-brown, oblong, 1.2 mm. long (fig. 46), 



This species is allied to S. bcrfcroauus of the West Indies. The habit is 

 somewhat different, because of the flattened falcate internodes and the narrow and 

 denser panicles. As in that species the reddish fruits at maturity remain attached 

 to the panicle by their mucilaginous coating. Our species is rarely attacked by the 

 black fungus which gives to the allied .S". bcrfcroanns its name of smut grass. 



Grassy slopes and savannas ; apparently introduced but abundant in places. 

 Originally described from Australia. 

 Oahu: Schofield Barracks, Hitchcock 13940, 13949. 

 Molokai: Central part, Hitchcock 15162. 

 Maui: Olinda, East Maui, Hitchcock 14934. Haleakala above Ukulele, East Maui, 



Forbes 170. 

 Havi'aii: Kukaiau Ranch, Hitchcock 14203. Kukuihaele, Rock 4508. 



3. Sporobolus diander fRetz.) Beanv. Ess. Agrost. 26, 147. 1812. 



.4grosfis diandra Retz. Obs. Bot. 5:19. 1789. 



Plants perennial ; culms tufted, erect from a geniculate base, slender, glabrous, 30 to 60 

 cm, tall: sheaths glabrous, sometimes sparsely pilose at the throat; blades flat, i to 2 mm. wide; 

 panicle narrow, but loose, as much as 30 cm. long, the branches ascending or somewhat spread- 

 ing, the lower 2 to 3 cm. long, the spikelets short-pediceled and clustered along these main 

 branches; spikelets 1.5 mm. long, scarcely compressed, glabrous; glumes unequal, obtuse, or the 

 second acuti.^ili, the first about one-fourth as long as the floret, the second about one-half as 

 long; lemma and palea equal, obtuse or acutish ; caryopsis brown, about 0.8 mm. long (fig. 47). 



Alhed to S. indicns of South America, the panicle looser and more delicate. 

 Grassland along streets; introduced. Originally described from India. 

 Oahu: Honolulu, Hitchcock 14070; Forbes 1715. 



Osterdamia matrella (L.) Kuntze. Rev. Gen. PI. 2:781. 1891. (Agrostis matreUa L. 

 Mant. PI. 2:185. ^77'^) ^'^^^ been introduced as a lawn grass and was collected at Wailuku, 

 Maui, by Faurie (no. 1329). This is a creeping grass with strong rhizomes, the flowering culms 

 spreading or prostrate, 10 to 15 cm. long', with short distichous blades, and a narrow rather 

 few-flowered panicle, the subsessile spikelets about 3 mm. long, these disarticulating from the 

 pedicel, the first glume wanting, the second glume infolding the thin lemma and palea. Origi- 

 nally described from India. 



Lcptochloa virgata ( L. ) Beauv. Ess. Agrost. 166. 1812. {Cynosnrus virgatus L. Syst. 

 Nat. ed. 10. 2:87. 1759.) This was growing in Mr. Von Tempsky's garden on the Haleakala 

 Ranch, Maui, under the name of Judd grass. An erect smooth perennial with several slender 

 spikes along the upper part of the culm. 



24. ELEUSINE Gaertn. 



Spikelets few to several-flowered, compressed, sessile and closely imbricate, in two rows 

 along one side of a rather broad rachis, the latter not prolonged beyond the spikelets ; rachilla 

 disarticulating above the glumes and between the florets, glumes unec|ual, rather broad, acute, 

 i-nerved, shorter than the first lemma; lemmas acute with 3 strong green nerves close together 

 forming a keel, the uppermost somewhat reduced: seed dark brown, roughened by fine ridges, 



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