46 MISSOURI BOTANICAL GARDEN. 
Panicum Auritum J. S. Presl in C. B. Presl Reliq. Haenk. 
1: 305 (1830). *‘* Hab. ad Sorzogon Luzoniae.’’ First 
published by Nees ab Esenb. in Mart. Flor. Bras. 2: 176. 
= No. 81 Flor. Singapore, in Natl. Herbarium. — Plate 
15. 
PANICUM BRIZAEFORME J. S. Presl in C. B. Presl Relig. 1: 
302 (1830). ‘Hab. in Luzonia.’’ = Panicum paspa- 
_ loides Pers. Syn. 1:81 (1818).— Plate 16. 
Panicum cartnatum J. S. Presl in C. B. Presl Reliq. 
Haenk. 1: 309 (1830). <‘*Hab. in insula Luzonia ad 
Sorzogon; 8.in Mexico?’’ This species has been referred 
to P. trigonum Retz. by Hackel (see specimen in Nat. 
Herb. from India, collected by Anderson). Another 
specimen in Nat, Herb. is from Assam, collected by the 
Reporter on Economic Products to the Government of 
India. In both of these specimens as well as in that of 
Presl the spikelets are glabrous while those of P. trigonum 
are described as having hispid outer glumes. A grass from 
China, collected by Ridley, and nowin the Nat. Herb. 
under the name of P. trigonum Retz., has hispid outer 
glumes. The spikelets and general habit of this grass agree 
with those of P. carinatum, but the leaves are shorter 
and taper to an acute or narrow not a cordate base. P. 
carinatum Presl is certainly closely allied to and perhaps 
identical with P. radicans Retz., P. accrescens Trin. 
Icon. Gram. 8. ¢. 88. — Plate 17. 
PanicuM CONVOLUTUM Beauy., J. S. Presl in C. B. Presl 
Reliq. Haenk. 1:304 (1830). ‘*Hab. ad Sorzogon 
Luzoniae.’? = Panicum repens Linn. Sp. Pl. ed. 2. 87. 
Tropical and subtropical regions of both hemispheres. 
No. 2879 Ridley in Natl. Herbarium from China (1893) 
is the same. 
PanicuM FimBRiaTuM J. S. Presl in C. B. Presl Reliq. 
Haenk. 1: 298 (1830). This is the same as Digitaria 
jimbriata Link, which Nash retains as a species under 
Syntherisma (Bull. Torr. Bot. Club 25:302). By 
