The Flora of the Cayuga Lake Basin 377 



3. Orobanche (Tourn.) L. 

 1. O. uniflora L. (Aphyllon unifiorum of Cayuga Fl.) Cancer-root. 



In low or upland woods, in sandy, gravelly, or stony soils apparently with little 

 regard to lime content; parasitic on various herbs, including ferns; scarce. May 

 20-June. 



Coy Glen; Beebe Lake (£>!); Cascadilla woods (£>.) ; Turkey Hill (£>.); Fir 

 Tree Swamp, Freeville; low woods near Mud Pond, McLean Bogs, Duck Lake; 

 absent on the clay soils and rich alluviums of the basin. 



Newf. to Ont. and possibly B. C, southw. to Ga., Tex., and Calif.; occasional on 

 the Atlantic Coastal Plain. 



This species is frequently separated from other species of Orobanche as a distinct, 

 genus, but in Orobanche there are all gradations and combinations of the characters 

 employed in such separation. 



114. LENTIBULARIACEAE (Bladderwort Family) 



a. Lips of the calyx 2-3-cleft ; upper lip of corolla recurved-spreading, the palate 

 inconspicuous; leaves entire, in a basal rosette. 1. Pinguicula 



a. Lips of the calyx entire or nearly so ; upper lip of corolla erect, the palate 

 usually very conspicuous ; leaves dissected, scattered. 2. Utricularia 



1. Pinguicula (Tourn.) L. 

 1. P. vulgaris L. Butterwort. 



Dripping limy, mostly shaded, cliffs in ravines ; rare. June 10-30. 



Cascadilla Creek, both sides of Glen Pond, 1869 (Dr. Jordanl), and farther down 

 the ravine (D.) ; Fall Creek, on Primrose Cliff below Triphammer Falls (D.\) 

 and opposite Rocky Falls (D.) ; Taughannock Gorge, s. side in several places 

 (£>.!). Apparently the only other stations reported in N. Y. State are: along the 

 Genesee River, below the falls at Rochester, below Portage Falls, and near Mount 

 Morris; Sidney (Hoy fide Clute, Fl. Susq.). 



N. B. and Que. to N. Y., Mich., Mont., B. C, and far northw. Found also in 

 Eurasia. A very rare plant in the southern part of its range. 



2. Utricularia L. 



a. Stems slender, creeping or floating; leaves forked or divided, scattered, bladder- 

 bearing ; flowers large or small ; spur mostly blunt. 

 b. Leaves 20-50 mm. long, pinnate; flowers 10-20 mm. wide; plants floating in 

 stagnant pools. 1. U. vulgaris, 



var. americana 

 b. Leaves less than 20 mm. long, forking ; flowers various. 



c. Branches strongly dimorphous, the bladders on almost leafless branches, 

 the leaves on bladderless branches ; leaves sessile, several times forked, the 

 divisions broad and flat; bladders 2.5-4 mm. long; corolla 10-20 mm. in 

 diam., the lips very unequal in length. 2. U. intermedia 



c. Branches all similar, equally bladder-bearing ; divisions of the leaves more 

 capillary; bladders 1-1.8 mm. long; corolla 4-8 mm. in diam. 

 d. Corolla open in the throat, the upper lip much shorter than the lower lip; 

 spur almost obsolete; pedicels recurved in fruit; plants, in this region, 

 mostly free-floating and rarely flowering; bladders 1.5-1.8 mm. long. 



3. U. minor 

 d. Corolla closed by a palate, the lips nearly equal in length; spur about half 

 the length of the lip; pedicels erect in fruit; plants creeping on mud in 

 very shallow water, the leaves very much reduced; bladders 1-1.5 mm. 

 long. 4, U. gibba 



