Hifciu'ock — The (j'rasscs of Ilai^'aii ' 191 



10. Panicum maximum Jacq. OjII. liot. i 76. 1786. Guinea grass. 



Plants perennial, tufted; culms robust, erect, glabrous, i to 2 meters tall, tbe nodes 

 usually densely hirsute: sheaths papillose-hirsute to glabrous, usually pubescent on the collar; 

 ligule 4 to 6 mm. long, stiffly and densely ciliate ; blades erect or ascending, flat, 30 to 75 cm. 

 long, I to 3.5 cm. wide, scabrous on the margin, glabrous on the surfaces or hirsute alxjve near 

 the base ; panicle 20 to 50 cm. long, about one-third as wide, densely flowered, the long, rather 

 stiff branches ascending, naked at base, the lower in whorls, the a.xils pilose, the branchlets 

 short, appressed, bearing more or less clustered short-pediceled spikelets ; spikelets a1)out 3 mm. 

 long, oblong-ellipsoid, glabrous ; first glume one-third as long as spikelet, obtuse ; second glume 



and sterile lemma subequal, slightly exceeding the fruit, thin, the lemma with a staminatc flower; 



fruit about 2.5 mm. long, transversely rugose (fig. 78). 



Open ground along road ; introduced. (Originally described front Guade- 

 loupe where it was introduced from Africa. 

 Oahu: Fort Shafter, Hitchcock 13858. 



11. Panicum nephelophilum Gaud, in Freyc. V'oy. Uran. Bot. 411. 1830. 



?Panicuiu pscndoi^rostis Trin. Gram. Pan. 197. 1826. 



Paiiiciiiii liazvicitsc Reichardt, Sitzungsb. Akad. Wiss. Math. Naturw. (Wien) 76^:723. 

 1878. 



I'lants perennial, tufted; culms erect, glabrous, usually i to 1.5 meters tall; sheaths 

 papillose-pilose or glabrate ; ligule a short membrane about i mm. long, densely ciliate with 

 hairs i mm. long; blades flat, glabrous, scabrous, in some specimens ciliate on the margin, 

 mostly 15 to 30 cm. long, 8 to 25 mm. wide; panicle open, in well-developed plants very 

 large, as much as 50 cm. long and 30 cm. wide, the branches stiffly ascending, the lower in 

 whorls, the axils often pubescent ; spikelets narrow, 2 to 2.5 mm. long, glabrous, appressed along 

 the branchlets on pedicels about their own length ; glumes equal, the first acuminate, 

 5-nerved, the second acute, 7-nerved ; sterile lemma a little shorter than the glumes, glabrous, 

 about 9-nerved, the palea ovate, nearly half as long as the lenuna ; fertile lemma acute, about 

 1.7 mm. long (fig. 81). 



Dr. Stapf has sent me a drawing of the Gaudichaud specimen. The sheaths are pilose. 



Paiiicinii pseiidogrostis Trin., from "Ins. Sandw. (Chamisso herb.)" may belong to 

 Panicum neplielophilum but the description does not agree in all respects. It is described as 

 having a large panicle and leaves a foot long, and one-half inch wide, "hirtula". The pedicels 

 are described as hispidulous, and the fertile lemma as having two appendages at base as in 

 Panicuni (Ichnanthus) ahnadciise. The last stateinent does not apply to any of our species and 

 may be an error. The pedicels of this species and the next are mostly glabrous, sometimes 

 sparsely scaberulous, but not hispidulous. The blades of P. nephelophUnm are glabrous and of 

 P. kaalaciisc, velvety pubescent, but not hirtulous. Panicum pscudogrostis will be uncertain 

 until the type is examined. 



Moist or dry woods, mostly at upper altitudes. Originally described from 

 "Insulis Sandwicensibus." 

 Kauai: Kaholuamano, Rock 12638; Hitchcock 15284, 15436; Heller 2850; Hale- 



manu, Forbes 820; W'ainiea, 2000 to 3000 feet, Mann & Brigham 300; 



Searle in 1900. 

 Oahu: Mt. Kaala, Hitchcock 14014. 

 Molokai : Without locality, Forbes 379. 

 Lanai : Munro 272, 334, 467. 



12. Panicum kaalaense sp. nov. 



Plants perennial, tufted; culms erect, more or less pubescent or villous, 60 to 150 cm. tall, 

 the nodes villous ; sheaths villous ; ligule membranaceous, i mm. long, extending into cilia i mm. 



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