182 Agnes Chase. 
vchinolaena hirta Desv., Journ. de Bot. Paris, 1; 75, 1813. (See above.) 
— Echinolaena scabra H B. K. Nov. Gen. & Sp. 1; 118, pl. 38, 1816. 
„Creseit in ripa umbrosa Atabapense juxta vicum San Balthasar et rupem 
Kemarumo. (Prov. de la Nueva Guayana.)* The type specimen has 
not been examined but the plate and description identify the species. 
— Panicum echinolaena Nees, Agrost. Bras., 128, 1829. Nees divides the 
entire species into three varieties, «, @ and y and cites „Echinolaena 
scabra H. et K.“ as a synonym without indicating to which variety he 
considers it synonymous. Since he also cites specimens we can not 
consider P. echinolaena a change of name only. „Var. « et 8 in Bra- 
silia meridionali. (Sellow.) Vidi in Herb. Reg. Berol. — Var. y in 
campis siccis ad Tanbaté nec non Sabara, provinciarum S. Pauli et 
Minarum * * * (Martius) The specimens referred to as « and 
8 have not been examined. The Martius specimen, the type of var. y, 
in the Munich Herbarium, is the villous form represented in the National 
Herbarium by Novaes 1248, Campinas, Brazil. 
86. Mesosetum exaratum (Trin.) A. Chase, l. c, p. 121. — Panicum 
exaratum Trin., Gram. Pan., 160, 1826. „Brasil. (Langsdorff.)* The 
type specimen, in the Trinius Herbarium, is labeled „Panicum exaratum 
m. In pratis paludosis S. da Lapa, Brasil, leg. cl. de Cange: 
dorff.* — Panicum pappophorum Nees, Agrost. Bras., 104, 1829. „Habitat 
* * * provinciae Piauhiensis.“ The type specimen, in the Munich 
Herbarium, bearing the name and locality as published, was collected by 
Martius, 
37. Mesosetum chlorostachyum (Doell) A. Chase, Le p. 122. — 
Panicum chlorostachyum Doell in Mart., Fl. Bras., 2?; 173, pl. 28, A, 1877. 
„Habitat in regionibus fluminis Rigo Negro (Spruce no. 885, 1310).* 
Spruce’s no. 885 is in the Munich Herbarium. 
38. Mesosetum ferrugineum (Trin.) A. Chase, l c, p. 122, — Pant 
cum ferrugineum Trin., Gram. Pan.. 1826. „Brasil (Langsdorff).* The 
type specimen, in the Trinius Herbarium, is labeled „Panicum ferrugineum 
m. In campis glareosis pr. S. Luzia, Brazil. |. mense Oct. 1824, 
cl. Langsdorff.“ — Panicum eriochryseoides Nees in Trin, Gram. Pan. 
160, 1826. This name is given as a synonym of P. ferrugineum. Nees 
(Agrost. Bras., 103, 1829) publishes. this as a new species citing a Spe 
cimen collected in Brazil by Sellow, ,Vidi in Herb. Reg. Berol." 
What is evidently a duplicate of this is in the Trinius Herbarium. 
Nees gives „Panicum ferrugineum Tr. in litt.“ as a synonym of P. 
eriochryseoides. 
39. Mesosetum bifarium (Hack) A. Chase, l. c. p. 123. — Pamicum 
bifarium Hack., Österr. Bot. Zeitschr., 47; 76, 1897. „Serra da Baliza ad 
Cachoeiras da Vargem Grande, 5 -I, 1895, Glaziou no. 22455*. — Be 
faria bifaria Kuntze, Gen. Pl, 3; 2359, 1898. Based on Panicum bifarium 
Hack. Kuntze, apparently without having seen the species, raises 
Hackel's section, on account of the lobed and awned first glumes, t° 
generic rank in order to be consistent, he having maintained Opus- 
