OROBANCHACE^. (BROOM-RAPE FAMILY.) 393 



2. P. lanceolata, Michx. Stem upright (1-3° high), nearly simple; 

 mostly smooth; leaces partly opposite, oblong -lanceolate, doublij cut-toothed; 

 spike crowded; cahjx 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. Furbishise, Watson. Tall (2-3'^ high) pubescent or glabrate; 

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

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

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

 toothed ; upper lip of corolla straight ami 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. MELAMPYRUM, Tourn. Cow-Wheat. 



Calyx bell-shaped, 4-cleft ; the taper lobes sharp-pointed. Tube <jf 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 fxeKas, black, and irvpos, ivheat ; 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 [o" long). — Open woods ; common, from 

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



Order 7Q. OROBANCHACE^E. (Broom-rape Family.) 



Hei'bs destitute of green foliage (root-parasites), monopetalous, didyna- 

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

 seeded; seeds minute, ivith albumen and a very minute embryo. — Calvx 

 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 

 corolla; anthers 2-eelled, persistent. Ovary free, ovoid, pointed with a 

 1 mg 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. 

 \. Epipliegus. Upper flowers sterile, with a tubular corolla; the lower fertile, with the 

 corolla minute and not expanding. Bracts inconspicuous. 



