314 LENTIBULARIACE.E. Epiphegus. 



the oblong (white and brownish-striped) corolla about as long as the upper; its lobes 

 oblong, widely spreading: filaments densely bearded at base. — Pacif. R. Rep. iv. 118, & 

 Bot. Calif, i. 585. — California; on dry steep liills, S. Yuba, Bujelow. Santa Lucia Moun- 

 tains, parasitic on Manzanita-roots, Brewer. San Bernardino Co., Lemnion. (Me.x. ?) 



5. EPIPHEG-US, Nutt. (Written Epifcujus.) Bekch-duops, Cancer- 

 root. (Composed of ini, upon, and (fijyo^; Beech, being parasitic on the roots 

 of tliat tree.) — Single species. 



B. Virginiana, Bart. Annual, slender, a foot or so high, with thickened base produc- 

 ing short iibrous matted roots, glabrous, dull purple or yellowish-brown, panieulately 

 branched: scales and bratts minute and sparse : cleistogamous flowers a line and capsules 

 2 lines long: developed coroUiferous flowers along the upper jmrt of the branches 3 to 6 

 lines long, purplish and whitish. — Comp. Fl. Philad. ii. 50; Gray, Man. I.e.; Renter in 

 DC- 1. C. 4. E. Aiiiericanus, Nutt. Gen. ii. GO; Endl. Iconogr. t. 80. Orohanche Virginiana, L. 

 Lejitaninium Virginianum, Raf. in Am. Month. Mag. 1819. Mijlanclie, Wallr. Orobanch. 75. 

 — Beech woods. New Brunswick to Florida and Missouri : fl. autumn. 



Order XCVIII. LENTIBULARIACE^. 



Herbs, growing in water or wet soil, when terrestrial acaulescent, with scapes 

 or scapiform peduncles simple and one-few-flowered, calcarate corolla always 

 and calyx usually bilabiate, a single (anterior) pair of stamens, confluently one- 

 celled anthers contiguous under the broad stigma, no hypogynous disk, and a free 

 one-celled ovary with free central multiovulate placenta (either sessile or stipi- 

 tate) which becomes a globular many-seeded capsule ; the anatropous seeds with 

 a close coat, no albumen, and filled by the apparently solid ellipsoidal or oblong 

 embryo. Style short or none: stigma bilamellar, or the smaller anterior lip 

 so'metimes obsolete. Upper lip of the corolla commonly erect or concave, or the 

 sides replicate, from entire to 2-lobed, interior in the bud ; lower larger, spreading 

 or reflexed, o-lobed, with a palate projecting into the throat and a nectariferous 

 spur beneath. Flowers always perfect. Capsule commonly bursting irregularly. 



— The following are the two principal genera. (For action of bladders of Utri- 

 cularia and leaves of Plngiiicida, see Darwin, Insectivorous Plants, p. 368-453.) 



1. UTRICULARIA. Cnlyx 2-parted or deeply 2-lobcd ; lobes mostly entire, nearly equal. 

 Upper lip of strongly bilabiate and more or less i)ersonate coj'olla erect. Filaments thick, 

 strongly arcuate-incurved, tlie base and apex contiguous. Dissected foliage or stems of 

 aquatic species bladder-bearing. 



2. PINGUICULA. Calyx with upper lip deeply 3- and lower 2-clcft or parted. Corolla 

 ringent or less ])ersoiiate, and the Inbes all sjjreading. Filaments straighter : anthers nearly 

 transverse. Terrestrial, with entire rosulate leaves next the ground. 



1. UTRICULARIA, L. Bladderavokt. {Utriculus, a little bladder.) 



— Cosmopolitan .small herbs: terrestrial species with inconspicuous or fugacious 

 radical leaves ; arjuatic with the dissected leaves, branches, and even roots, bearing 

 little bladders, which are furnished with a valvular lid, and commonly tipped with 

 a few bristles at orifice. Scapes one-flowered or racemosely several-flowered, in 

 summer. — Lentihidaria, Vaill. 



§ 1. Scape bearing an involucriform whorl of dissected leaves, which are buoyant 

 by ample inflated-bladdery petioles filled with air : canline leaves of the immersed 

 branching stems capillary-dissected and bladder-bearing, in the manner of the fol- 

 lowing section : roots few or none. 



