162 



CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Chamaeraphis pahnifolia Kuntze, Rev. Gen. PI. 2: 771. 1891. Based on Panicum 

 palmifolium Willd. 



Setaria pahnifolia Stapf, Journ. Linn. Soc. Bot. 42: 186. 1914. Based on Panicum 

 palmarfolium Koen. 



DESCRIPTION. 



Plants perennial; culms 1 to 1.5 meters tall, glabrous or sparsely villous, the nodes 

 puberulent; sheaths papillose-hispid or glabrate, hispid on the collar; ligule densely 

 ciliate, about 2 mm. long; blades strongly plicate, flat, pubescent or glabrate, elliptic, 

 narrowed to a petiole-like base, as much as 50 cm. long and 6 cm. wide; panicles 



rather loose and open, green, 

 long-exserted, as much as 40 

 cm. long, the rachis scabrous, 

 the branches ascending or 

 spreading, scattered, some- 

 what distant, especially below, 

 5 to 10 cm. long, compound; 

 spikelets lanceolate, acute, 

 about 3 mm. long, closely ar- 

 ranged on short branchlets 

 appressed along the main 

 branches, forming interrupted 

 compound racemes, the bris- 

 tles inconspicuous, usually 

 not over twice as long as the 

 spikelets, often short and im- 

 perfectly developed ; first 

 glume one-third the length of 

 the spikelet, obtuse, 5-nerved ; 

 second glume acutish, half the 

 length of the spikelet, 7- 

 nerved, the outer nerves ob- 

 scure; sterile lemma 5-nerved, 

 acute, exceeding the fertile 

 lemma, the palea narrow, 

 about half as long as the 

 lemma; fertile lemma lanceo- 

 late, acute, somewhat apicu- 

 late, 2.5 mm. long, obscurely cross-wrinkled, the palea entirely included in the 

 margins of the lemma. 



DISTRIBUTION. 



Rocky woods and shady banks, often growing in large colonies, a native of south- 

 eastern Asia; introduced in Jamaica. 



Jamaica: Gordon Town, Amer. Gr. Nat. Herb. 605; Hart 815. Cinchona, Hitchcock 

 9719; Harris & Lawrence 15232. Buff Bay, Hitchcock 9762. Mount Hybla, Harris 

 11535. Catherines Peak, Hitchcock 9727. Hardware Gap, Harris 10911. Castle- 

 ton, Harris 11286. Morces Gap, Nichols 37. 



4. Chaetochloa sulcata (Aubl.) Hitchc. 



Panicum sulcatum Aubl. PI. Guian. 1: 50. 1775. In this work, the flora of French 

 Guiana, Aublet states that this grows along rivers but gives no definite locality. 

 The type has not been examined. Aublet's short diagnosis "Panicum (sulcatum i 

 latifolium foliis liratis " is taken directly from' Plunder's Catalogue, 1 "Milium lati- 



Fig. 38. — Chaetochloa palmifolia. From Hitchcock 9727, Jamaica. 



1 Plum. Cat. PI. Amer. 10. 1703. 



