IRbobora 



JOURNAL OF 



THE NEW ENGLAND BOTANICAL CLUB 



Vol. 8. November, 1906. No. 95. 



NOTES ON GRASSES. 

 A. S. Hitchcock. 



During the study of the grasses of the northeastern United States it 

 has been found necessary to describe a few new species and varieties, 

 and to change the names of other forms to agree with the recent Inter- 

 national Rules of Botanical Nomenclature. Some new combinations 

 are due to changes in the rank of groups, investigation having shown 

 that forms supposed to be varieties must be recognized as species, 

 or the reverse. The new names and descriptions are given below. 

 Andropogon scoparius var. littoralis (Nash), comb. nov. 



A. /i7/ora//.s' -Nash, 1901. Britt. Man. 69. 



Sand dunes along the coa.st, N. Y. and southward. 

 Paspalum psammophilum Nash MSS. 



P. pw-strafum Nash, 1901. Britt. Man. 74, not Scribn. & Merr. 

 Jan. 1901; earlier than Britton's Manual. 



Sandy soil, So. N. Y. to Del. 

 Paspalum laeve var. australe Nash MSS. 



P. ausirde Nash, 1901. Britt. Man. 1039. 



Va. to Fla. and Miss. 

 Axonopus furcatus (Eliiggc), comb. nov. 



Paspalus furcatus Eliigge 1810. Mon. Pasp. 114. 



Paspalum FAUniiii Wats. 1890. Gray, Man. Ed. 6, 029. 

 Panicum gravius Hitchc & Chase, sp. nov. 



Culms in large tufts, slender, 50-80 cm. high, erect or spreading 

 at the summit, sheaths glabrous except a puberulent ring at the sum- 

 mit, the lower usually softly pubescent; ligule a ring of hairs 0..3 mm. 

 long; blades spreading, G~l() cm. long, 6-10 mm. wide, (the lower 

 shorter), acuminate, rounded at the base, glabrous, the lower rarely 



