OROBANCHACE.E. (BROOM-RAPE FAMILY.) 393 



2. P. lanceol&ta, Michx. Stem upright (1-3 high), nearly simple, 

 mostly smooth; leaves partly opposite, oblong-lanceolate, doubly cut-toothed; 

 spike 'crowded; calyx 2-lobed, leafy-crested; upper lip of the (pale yellow) 

 corolla incurved and bearing a short truncate beak at the apex, the lower 

 erect, so as nearly to close the throat; capsule ovate, scarcely longer than the 

 calyx. Swamps, Conn', to Va., Ohio, and Minn. 



3. P. Purbishise, Watson. Tall (2-3 high) pubescent or glabrate; 

 leaves lanceolate, pinnately parted and the short oblong divisions pinnatifid- 

 incised, or the upper simply pinnatifid and the lobes serrate ; bracts ovate, 

 laciniate-dentate ; calyx-lobes 5, rather unequal, linear-lanceolate, entire or 

 toothed ; upper Up of corolla straight and beakless, the truncate apex bicus- 

 pidate, the lower erect, truncately 3-lobed ; capsule broadly ovate. Banks of 

 the St. John's, Aroostook Co., Maine (Miss Kate Furbish), and adjacent 

 N. Brunswick. 



27. MELAMPYBUM, Tourn. Cow- WHEAT. 



Calyx bell-shaped, 4-cleft ; the taper lobes sharp-pointed. Tube of corolla 

 cylindrical, enlarging above ; upper lip arched, compressed, straight in front ; 

 the lower erect-spreading, biconvex, 3-lobed at the apex. Stamens 4, under 

 the upper lip ; anthers approximate, oblong, nearly vertical, hairy ; the equal 

 cells minutely pointed at base. Ovary with 2 ovules in each cell. Capsule 

 flattened, oblique, 1 - 4-seeded. Erect branching annuals, with opposite 

 leaves, the lower entire, the upper mostly toothed at base. Flowers solitary 

 in the upper axils. (Name from /*eA.as, black, and irvpos, wheat ; from the 

 color of the seeds of some species as they appear mixed with grain.) 



1. M. Americanum, Michx. Leaves lanceolate, short-petioled, the 

 floral ones like the lower, or truncate at base and beset with a few bristly 

 teeth ; calyx-teeth linear-awl-shaped, not half the length of the slender tube 

 of the pale greenish-yellow corolla (5" long). Open woods ; common, from 

 the Atlantic to Minn, and Iowa, especially eastward. June - Sept. 



ORDER 76. OROBANCHACEJE. (BROOM-RAPE FAMILY.) 



Herbs destitute of green foliage (root-parasites), monopetalous, didyna- 

 mous, the ovary one-celled with 2 or 4 parietal placenta ; pod very many- 

 seeded; seeds minute, with albumen and a very minute embryo. Calyx 

 persistent, 4-5-toothed or parted. Corolla tubular, more or less 2- 

 lipped, ringent, persistent and withering ; upper lip entire or 2-lobed, 

 the lower 3-lobed. Stamens 4, didynamous, inserted on the tube of the 

 i-orolla ; anthers 2-celled, persistent. Ovary free, ovoid, pointed with a 

 long style; stigma large. Capsule 1-celled, 2-valved ; each valve bearing 

 on its face one placenta or a pair. Seeds very numerous, minute. Low, 

 thick or fleshy herbs, bearing scales in place of leaves, lurid yellowish or 

 brownish throughout. Flowers solitary or spiked. 



* Flowers of two sorts, scattered along slender panicled branches. 



1. JEpipliegus. Upper flowers sterile, with a tubular corolla ; the lower fertile, with the 

 corolla minute and not expanding. Bracts inconspicuous. 



