The Flora of the Cayuga Lake Basin 213 



10. R. fascicularis Muhl. (R. fascicularis, first form, of Cayuga Fl.) Early 

 Woods- B uttercup. 



Dry hillsides and thinly wooded slopes, apparently in nearly neutral soils ; rare. 

 Apr. 10-May 20. 



Dudley's statement as to the frequency of this species is not clear. In recent years, 

 at least, it has been known only from above the lake cliffs between McKinneys and 

 Esty, where it is common. 



E. Mass. to Out., Wis., and Man., southw. to N. C, Tex., and Kans. ; rare or 

 absent on the Coastal Plain. 



The fusiform fleshy roots often decay at flowering time, and hence may easily 

 escape notice. 



11. R. hispidus Michx., var. falsus Fernald. (See Rhodora 22:30. 1920. R. 

 fascicularis, second form, of Cayuga Fl.) Early Woods-Buttercup. 



Hillsides and thinly wooded slopes, on sandy, gravelly, or stony, acid or neutral, 

 soils ; frequent. Apr. 10-May 20. 



Characteristic of the chestnut and oak woodlands: Enfield Glen; Inlet Valley 

 slope near Lick Brook ; Beebe Lake ; Cascadilla woods ; Renwick slope ; McGowan 

 Woods ; Shurger Glen ; Salmon Creek ; and elsewhere ; rare or absent in the heavy 

 soils and in the calcareous gravels of the McLean district. 



Vt. and Ont. to N. Dak., southw. to Ga. and Ark., including the Coastal Plain. 



12. R. septentrionalis Poir. Swamp Buttercup. 



Swales and wet woods, mostly on rich mucky soils, with little reference to lime 

 content; frequent, and locally abundant. May-June. 



S. w. of Key Hill; Ithaca flats; Renwick; Ringwood; Malloryville; Beaver 

 Brook ; Salmon Creek ; and elsewhere. 



N. B. to Man., southw. to Ga. and Kans. ; infrequent on the Coastal Plain. 



13. R. repens L. Creeping Buttercup. 



Damp shady roadsides, damp banks around swamps, also in lawns, in various soils ; 

 scarce. June-July 15. 



The typical form, as defined by Fernald, occurs in the lawn of the Sawyer resi- 

 dence, Mitchell St., Ithaca; the lawn of the Veterinary College; along roadsides from 

 Spring Lake to Savannah ; on the border of cattail marshes at Union Springs ; and 

 probably elsewhere. 



Newf. to Ont. and B. C, southw. to Va., especially near the coast. In the East, at 

 least, naturalized from Eu. 



The dwarf lawn forms of both this and var. villosus are strikingly different in 

 general appearance from the more robust types, but no important structural differ- 

 ences have been found. 



13a. R. repens L., var. villosus Lamotte. (See Rhodora 21 : 169. 1919.) 

 In dry soil ; occasional. June. 



Lawns, Quarry St., Ithaca; waste soil, Myers Point. 

 Adventive or perhaps naturalized from Eu. 



13b. R. repens L., var. pleniflorus Fernald. (See Rhodora 21:169. 1919.) 



Damp roadsides, ditches, and yards ; occasional. June. 



Escaped from cultivation : near Danby village ; McLean station ; between Interlaken 

 and Lodi. 



This is probably the double-flowered variety of R. bulbosus mentioned by Dudley 

 as occasionally escaping near gardens, as at McLean. It is not known in the wild 

 state. In general appearance it resembles R. repens very little and may be specifi- 

 cally distinct. 



