202 
99. Dantuonia spicata (Linn.) Beauv.—Very common through- 
out. In open woods and on dry hillsides.—Delaware (Smith’s 
Cat.); Chester (Fl. Cestrica); Bucks (Moyer’s Cat.); Monroe ; 
Lycoming, McMinn. 
100. DANTHONIA CoMPRESSA, Austin.—Rare. A mountain species. 
—Monroe, Britton; Berks; Crawford; Lackawanna; Lycom- 
ing, McMinn. coro . 
101. DANTHONIA SERICEA, Nutt—Lycoming, McMinn. ‘On 
dry slate hills.” Very rare. 
102. CaprioLa Dactyton(L.) Kuntze. (Cyuodon Dactylon, Pers.). 
—Introduced from Europe and spreading from ballast-heaps.— 
Philadelphia, Dzfenbaugh; Bucks, at Bristol, Difendaugh; 
Bethlehem, ABechdo/t—Abundant in the South. 
103. BOUTELOUA CURTIPENDULA (Michx.) A. Gray.—Rare.—Chester 
(Fl. Cestrica); Northampton; Lancaster; Huntingdon, Lowrie. 
104. ELrusine Inpica (Linn.) Geert.—Nat. from India. Very 
common throughout.—Delaware (Smith’s Cat.); Chester (Fl. 
Cestrica); Bucks (Moyer’s Cat.); Luzerne (Dudley and Thurs- 
ton’s Cat.); Northampton; Huntingdon, Low/rie. 
105. Ereusine AEcyptiaca (Willd.) Pers.—Adv. from Eu.—Dela- 
ware, “established at some places and spreading,’ Dr. G. 
Smith; Philadelphia, Diffendaugh.—Spreading from ballast- 
heaps. - 
106, SIEGLINGIA FLAVA (L.) Kuntze. (TZriodia sesleroides, Benth.).— 
Frequent throughout.—Delaware (Smith’s Cat.); Chester (Fl. 
Cestrica); Bucks (Moyer’s Cat.); Lancaster; Northampton; 
Luzerne (Dudley and Thurston’s Cat.); Huntingdon. 
107. TRIPLASIS PURPUREA (Walt.) Beauv.—Erie, on Presque Isle, 
Garber—A coast-plant. The only station known in Pennsyl- 
vania. 
108. PHRAGMITES VULGARIS (Lam.) B. S. P.—Rare and local.—. 
Delaware, Dr. G. Smith ; Chester (Fl. Cestrica); Erie, on Pres- 
que Isle, Garver. 
109. Ka:LeriA crIsTATA, Pers.—Very rare—Found only on Camp- 
bell’s Ledge, on the Susquehanna river above Moeanaqua 
(Dudley and Thurston’s Cat.), Dudley. 
110. Eatonia Pennsytvanica (Spreng.) A. Gray.—Frequent — 
throughout.—Delaware (Smith’s Cat.) ; Chester (Fl. Cestrica); 
Bucks, 7. #. Ruth ; Northampton; Lancaster; Tioga, Garber. — 
