194 REPORT OF NEW JERSEY STATE MUSEUM. 



e. Rootstocks present, culms but little compressed, spikelets 

 set obliquely on their appressed pedicels. P. anceps, p. 198 

 ce. Root stocks none, culm strongly compressed, spikelets not 

 obliquely arranged. 



f. Ligules ciliate, basal leaves half the length of the 

 culm, panicle longer than the upper leaves. 



P. longifolium, p. 197 

 //. Ligules not ciliate, basal leaves in short tufts, upper 

 leaves about equaling the panicle. 

 g. Fruit stipitate, spikelets 2.5-2.8 mm. long, secund. 



P. stipitatum, p. 197 

 gg. Fruit not stipitate, spikelets not secund. 



h. Spikelets 1.8-2 mm. long, branches ascending or 



spreading. P. agrostoides, p. 196 



hh. Spikelets 2.5 mm. long, branches ascending, 



dense. P. condensum, p. 197 



Panicum hemitomon Schultes. Narrow Panic-Grass.* 



Panicum hemitomon Schultes, Mant. II. 227. 1824 [n. n. for P. ivalteri 



Muhl.=:Ell. from near Savannah]. 

 Brachiaria digitnrioides Stone, Bartonia II., p. 26, 1910. 



This is another southern species restricted to wet swamps in 

 the southwestern portion of the Cape May peninsula. It was 

 discovered in August, 1909, by Mr. O. H. Brown. 



In Torreya 1907, p. 39, the writer erroneously recorded this 

 grass from Cape May county, the specimens proving to be Pani- 

 cum condensum Nash, (see Proc. A. N. S. Phila., 1908, p. 458). 



The same error was made by Keller and Brown, Flora of 

 Philadelphia, 1905, p. 33. 



Fl. — Late June to late July (apparently). * 



Cape May. — Bennett, Cape Alay. 



Panicum verrucosum Muhl. Warty Panic Grass. 



Panicum verrucosum Muhlenberg, Gram. 113. 1817 [New Jersey.]. — Brit- 

 ton 281. — Keller and Brown 36. 



Sandy swamps ; common throughout the Pine Barrens and 

 frequent in the lower part of the Middle district. This is a 

 characteristic south Jersey grass distinguished from all the other 

 members of the genus by the minute tubercles on the spikelets. 



Fl. — Early August to late September. 



* In the genus Panicum a number of New Jersey records published in 

 "The North American Species of Panicum" by Hitchcock and Chase (Contr. 

 from the U. S. Nat. Herb. vol. 15, 1910), are cited and marked H. & C. 



