160 



CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Panicum poiretianum Schult. Mant. 2: 229. 1824. Based on P. elongatum Poir. 

 notPursh. T^U**. <3*w»~~.&~^ /ff* tf "^4- ^~ 



Panicum speciosum Nees^Agrost. Bras. 252. 1829. " Habitat in campis ad Almeirim 

 provinciae Paraensis." The type, collected in Para by Martius, is in the Munich 

 Herbarium. The branches of the panicle are spreading and the spikelets are 4 to 5 

 mm. long. 



Panicum crus ardeae Willd.; Nees, Agrost. Bras. 253. 1829. "Habitat in America 

 meridionali." The type is in the Willdenow Herbarium at Berlin. 



Setaria poiretiana Kunth, Rev. Gram. 1: 47. 1829. Based on Panicum poiretianum 

 Schult. 



Setaria crus ardeae Kunth, Rev. Gram. 1: Suppl. xn. 1830. Based on Panicum 

 crus ardeae Willd. 



Panicum flabellatum Steud. Syn. PI. Glum. 1: 53. 1854. "Bahia." The type 

 was collected in Bahia by Salzmann. A duplicate type, distributed as Agrostis 



jlabellata Salzm., is in 

 the National Herbarium. 

 Agrostis Jlabellata 

 Salzm.; Steud. Syn. PI. 

 Glum. 1: 53. 1854, as 

 synonym under Panicum 

 flabellatum Steud. 



S etaria jurgcnsenii 

 Fourn. Mex. PI. 2: 42. 

 1886. "(Jurg. n. G92)". 

 is cited, the locality 

 other than Mexico being 

 unknown. The type has 

 not been examined but 

 the description applies 

 to C. poiretiana. 



Chamaeraphis crus 

 ardeae Kuntze, Rev. 

 Gen. PI. 2: 770. 1891. 

 Based on Panicum crus 

 ardeae Willd. 



Chamaeraphis speciosa 



Kuntze, Rev. Gen. PI. 



2: 770. 1891. Based on 



Panicum speciosum Xees. 



Kuntze merely lists 



" Chamaeraphis speciosa 



(A.Br.)." This probably 



refers to Panicum speciosum Nees, which Braun placed in the subgenus Ptychopkyllvm. 



Chamaeraphis juergensii [jurgensenii] Kuntze, Rev. Gen. PI. 2: 770. 1891. Based 



on Setaria jurgensenii Fourn. 



Panicum jurgensenii Scribn. & Merr. U. S. Dept. Agr. Div. Agrost. Bull. 21: 40. 

 1900. Based on Setaria jurgensenii Fourn. 



In previous papers l the name C. sulcata was applied to this species. See note 

 on the type of Panicum sulcatum p. 162. 



Fig. 37. — Chaetochloa poiretiana. From Pringle 3921, Mexico. 



DESCRIPTION. 



Plants perennial, cespitose; culms erect, 1 to 1.5 meters tall, glabrous, or villous 

 in the vicinity of the nodes; sheaths papillose-hispid, mostly longer than the inter- 



1 Contr. U. S. Nat, Herb. 17: 260. 1913, and op. cit, 18: 348. 1917. 



