258 NEW YORK STATE MUSEUM 



two or three times divided into linear, flat, bristly-serrulate segments 

 without bladders. Other branches or portions of branches usually bear 

 shorter, rootlike leaves with capillary segments and a few large bladders. 

 The flower-bearing scape naked or with one to several minute scales, 2 to 

 8 inches high and bearing one to four flowers on slender pedicels one-fourth 

 to three-fourths of an inch long. Calyx two-lobed. Corolla yellow, 

 strongly two-lipped, the upper lip broadly triangular, about one-third of 

 an inch broad, the lower lip slightly three-lobed and about one-half of an 

 inch broad with a prominent palate on its face. Spur pointed, about as 

 long as the lower lip. In midsummer, when the plant is in flower, the leafy 

 stems produce at their tips numerous conspicuous, obovate, velvety winter 

 buds which afford the chief means of propagation. 



Frequent in shallow water of slow streams, ponds and bogs, Newfound- 

 land to British Columbia south to New Jersey, Indiana and California. 

 Flowering in July and August or as late as early September. 



The Greater Bladderwort or Hooded Water Milfoil (Utricularia 

 macrorhiza LeConte) is perhaps the most abundant species of the 

 group throughout most parts of the State. It has free-floating stems 

 horizontally spreading beneath the surface. Leaves finely divided, but 

 not flat, bearing numerous small, conspicuous bladders. Scape stout, 3 

 to 20 inches high, with four to eighteen flowers, pedicels one-fourth to two- 

 thirds of an inch long, becoming longer and recurved in fruit. Corolla 

 yellow, three-fourths of an inch long, strongly two-lipped, the lower lip 

 a little longer and much broader than the upper and with a spreading, 

 undulate, slightly three-lobed border and a prominent palate; spur shorter 

 than the lower lip, subulate and upwardly curved. 



Broom Rape Family 



Orobanchaceae 

 Pale or Naked Broom Rape; Cancer-root 



Thalesia imiflora (Linnaeus) Britton 



Figure XXX 



Stems nearly subterranean, forming a dense mat, often several inches 

 in extent, parasitic upon the roots of various plants, bearing several ovate- 

 oblong scales and one to four slender, erect, glandular- puberulent, naked, 



