128 Rhodora [May 
cuT: Madison, “ 7. E. H.” Sept. 10, 1898, in Herb. Univ. Vt.; 
New Haven, Gray Herbarium, no collector or date; Southington ; 
L. Andrews, Aug. 14, 1898. 
DOUBTFUL OR EXCLUDED SPECIES AND THOSE WHICH MAY BE 
EXPECTED IN SOUTHERN NEW ENGLAND, 
PANICUM TEXANUM Buckley. ‘This species has been collected in 
waste about cotton mills, at Malden, Massachusetts, 7. S. Collins, 
September 15, 1888. Introduced from Texas and in all probability 
will not persist. 
PANICUM ADDISONI Nash. There is a specimen of this grass in 
the Blake Herbarium, University of Maine, labelled as collected at 
Andover, Massachusetts, by J. Blake, July 29, 1882. It is evident 
there was a mistake in copying the label, and therefore this species 
is excluded, although it may occur in New England. "The speci- 
men so reported from Connecticut by C. B. Graves, RHODORA, 3: 63. 
is a robust form of Panicum columbianum. 
PANICUM TSUGETORUM Nash, has been reported from various 
places in New England, but there are no specimens in any of the 
collections examined. It probably occurs in southern New England." 
PANICUM sTIPITATUM Nash. (Panicum elongatum Pursh, not 
Salisb.) A species very closely related to Panicum agrostoides is 
to be expected from southern New England, as it occurs about 
New York City. 
PANICUM SCOPARIUM Lam. The New England form which has 
been referred to this species is Panicum scribnerianum Nash. True 
Panicum scoparium Lam. is the form described by Elliott as azz-- 
cum viscidum, a southern species, while Panicum scoparium of Elliott, 
a very distinct form, is now known as Panicum ravenelii Scribn. & 
Merrill. For discussion of this species see Scribn. & Merrill, U. S. 
Dept. Agr., Div. Agros. Bul. 24: 34. 19or. 
PANICUM PUBESCENS Lam. From examination of typical mate- 
rial in the Herb. Mus. Paris, was found to be the late branched 
1Since the above article has been in press we have received specimens of 
Panicum tsugetorum Nash, from Dr. C. B. Graves, No. 170. collected on Mason's 
Island, near Mystic, Connecticut, July 15, 1897. It is a tufted somewhat pubes- 
cent perennial 2 to 4.5 dm. high with slender at length much branched culms, 
thin leaves and small pubescent spikelets. Culms and sheaths pubescent with 
short appressed hairs, intermixed toward the base with longer ones. Leaf blades 
erect or ascending, lanceolate, minutely appressed-pubescent beneath, glabrous 
above, 4 to 8 cm. long, 5 to 8 mm. wide, those of the branches smaller. Primary 
panicle ovate, 4 to 6.5cm. long, its branches few-flowered, spreading, ascending, 
spikelets ovate, 18 mm. long, the three empty glumes pubescent. 
This species is very closely related to certain forms of Panicum lanuginosum 
and in many cases can only be distinguished by the appressed-pubescent lower 
surface of the leaves. 
