835 P. PALusTRis Scop. (Marsh Potentilla.) Wyoming Swamp, Lehigh 



Pond. 



836 P. FRUTicosA L. (Shrubby Cinquefoil.) Monroe and Pike, Prof. 



Porter. 



837 P. TRiDENTATA Ait. (Threc-Toothed Cinquefoil.) Penobscot Knob 



and Bald Mount are the only stations known within limits. 



838 P. CANADENSIS L. (Common Cinquefoil.) A very common weed. 



FILIPENDULA Hill. 



839 F. RUBRA Rob. (Queen of the Prairie.) Lake Henry, Waverly. 



840 F. ULMARiA Maxim. (Queen of the Meadow.) Mount Pocono, 



Waverly. 



GEUM L. (Avens) 



841 G. CANADENSE Jacq. Frequent. 



842 G. FLAVUM Bicknell. (Cream-Colored Avens.) Luzerne County, 



Prof. Porter. 



843 G. viRGiNiANUM L. Occasional. 



844 G. STRicTUM Ait. Lake Winola, Tobyhanna. 



845 G. RiVALE L. (Purple Avens.) Lake Henry. 



RUBUS L. (Bramble) 



846 R. IDAEUS L. North Chinchilla reservoir gorge. 



847 R. IDAEUS, VAR. ACULEATissiMus R. and T. (Wild Red Raspberry.) 



Common. 



848 R. NEGLECTUS Pcck. Lake Scranton gorge, Mount Ararat. Rather 



frequent. 



849 R. PHOENicoLASius Maxim. (Wineberry.) Escape, near Water Gap. 



850 R. occiDENTALis L. (Black Raspberry.) Common. 



851 R. ODORATus L. (Purple Flowering Raspberry.) Common. 



852 R. TRiFLORUS Richards. (Dwarf Raspberry.) Pocono, Dudley. Not 



common. 



853 R. ALLEGHENiENSis Portcr. Common. 



854 R. CANADENSIS L. (Millspaugh's Blackberry.) Tobyhanna, Prof. 



Porter. 



855 R. SETOSUS Bigel. Swamps, Naomi Pines. 



856 R. NIGRICANS Rydb. (Bristly Blackberry.) Naomi Pines, Prof. 



Porter. 



857 R. HisPiDUS L. Frequent in swamps. 



858 R. viLLosus Ait. (Dewberry.) Common. 



859 R. viixosus, var. humifusus T. & G. Monroe County, Prof. 



Porter. 



DALIBARDA Kalkalm. 



860 D. REPEXs L. Tobyhanna, Lake Henry, Gouldsboro. Not uncommon. 



AGRIMONIA L. (Agrimony) 



861 A. striata Michx. Common. 



862 A. mollis Britton. Monroe County, Prof. Porter. 



863 A. parviflora Ait. North end of Glenburn Pond. 



SANGUISORBA L. (Burnet) 



864 S. CANADENSIS L. (Canadian Burnet.) Paupack Falls, Hawley, Dr. 



L. W. Ross. 



44 



