186 Agnes Chase. 
by a diagnosis. Nees distinguishes his plant from P. aturense by the 
7- to 9-nerved glumes and sterile lemma, these being erroneously des- 
cribed by Kunth as 3-nerved. — Panicum blepharophorum Presl, Rel. 
Haenk., 1; 312, 1830. „Hab. in Mexico.“ The type specimen is in 
Press Herbarium in the Bohemian National Museum at Prague. — Pani- 
cum tumescens Trin. Mém. Acad. St. Pétersb., VI. Sci. Nat., 3?; 316, 1834. 
No locality other than Brazil is given. In the Trinius Herbarium is à 
specimen collected by Riedel in Bahia, Brazil, in 1831, marked by 
Trinius. „Panicum tumescens m., which is no doubt the type. — 
Milium orinoccense Willd.; Steud. Nom. Bot., ed. 2, 2; 146, 1841. This is 
given as a synonym of Panicum aturense H. B. K. 
50. Homolepis isocalycina (Meyer) A. Chase, |. c., p. 147. — Panicum 
isocalycinum Meyer, Prim. Fl. Esseq., 59, 1818. „In arenosis umbrosis 
continentis“ Essequibo [British Guiana]. A specimen of this sent by 
Meyer was examined in the Trinius Herbarium. — Panicum Langei Fourn. 
Mex. PI. 2; 23, 1886. „Teotaleingo (Liebm., no. 435, junio).“ The type 
specimen is in the herbarium of the Botanical Garden of the University 
at Copenhagen. — In the National Herbarium there is a specimen of 
H. isocalycina collected by Salzmann in Bahia, Brazil, and distributed 
without number, as „Panicum zizanioides H. B. K.“ It is distinguished 
from .H. aturensis by the slightly shorter, more turgid spikelets, with a 
glabrous sterile lemma and more indurated fruit. 
51. Homolepis longispicula (Doell) A. Chase, |. c., p. 147. — Panicum 
longiflorum Trin., Mém. Acad. St. Pétersb., VI. Sci. Nat., 32; 317, 1834, 
not Gmel. 1796. No locality other than Brazil is given. In the Trinius 
Herbarium is a packet of spikelets marked „Panicum longiflorum m., 
Brasil*, and a specimen bearing the same name and also ,no. 147, 
Lect.—?*, — Panicum longispiculum Doell in Mart. Fl. Bras. 2?; 261, 
1877. „Habitat in Brasilia, loco accuratius non adnotato (herb. Acad. 
Petropolit.).^ Doell cites „Paspalum longiflorum Trinius in Act. Petrop.. 
1835, p. 307, non Gmelin, Syst. Veg., I, 158“. This must be an error 
for Panicum since there is no Paspalum longiflorum of Trinius nor of 
Gmelin. The page reference is also erroneous. Evidently Doell's name 
is a typonym of Panicum longiflorum Trin. — Ichnanthus longiflorus Benth., 
Journ. Linn. Soc, Bot, 19; 45, 1881. This is based on „Panicum longi- 
florum Trin.“, though from his statement that „in I. longiflora (Panicum 
longiflorum Trin.) they [the auricles] are very small, but prominent“ it 
seems probable that Bentham had some other species under this name. 
The fertile lemmas in the spikelets of this species in the Trinius Her- 
barium are not at all auricled nor are the spikelets, with their villous- 
margined second glumes and villous sterile lemmas, suggestive of Ich- 
nanthus. Both Trinius and Doell note the affinity of this species to 
Panicum aturense, — Homolepis longispicula difters from both the other 
species of this genus in having a densely silky-villous margin to the 
second glume, and a staminate flower in the first floret. The sterile 
(or staminate) lemma is densely villous, the fruit but little indurated 
