28G orobanciiacejE. (broom-rape family.) 



branching annuals. Leaves petioled, entire, roundish, the upper ones alternate. 

 Flowers racemed. 



1. M. proboscidea, Glox. — Stems thick, at length prostrate; leaves 

 round-cordate; corolla (1^'long) whitish, spotted with yellow and purple; cap- 

 sule (rested on one side, shorter than the beaks. — Waste places. Introduced. 

 Julv and Aug. 



Order 90. OROBANCHACE^E. (Broom-rape Family.) 



Low, leafless, scaly herbs, parasitic on roots, with bilabiate didynamous 

 flowers. — Calyx 4-5-toothed or parted. Corolla withering-persistent, 

 tubular, the upper lip 2-cleft or entire, the lower 3-lobed. Stamens in- 

 serted on the tube of the corolla : anthers persistent. Ovary free, 1 -celled, 

 with 2-4 parietal placentae. Style simple, curved at the apex: stigma 

 thick, 2-lobed. Capsule 2-valved, many-seeded. Seeds very small, ana- 

 tropous, with the minute embryo at the base of transparent albumen. — 

 Flowers perfect or polygamous, solitary or spiked. 



Synopsis. 



1. EPIPHEGTJS. Flowers polygamous, spiked ; the lower ones fertile, the upper sterile. Ca* 



lvx 2-biacted, 5-toothed. Stem branching. 



2. CONOPIIOLIS. Flowers perfect, spiked. Calyx 2-bracted, cleft on the lower side. Stem 



simple, thick and fleshy. 

 ;>. APIIYLLOX. Flowers solitary, perfect. Calyx bractless, 5-cleft. Corolla nearly equally 

 5-lobed. 



1. EPIPHEGTJS, Nlltt. BEECTT-T>T?Or-S. 



Flowers polygamous ; the upper ones slender and sterile, the lower abbreviated 

 and fertile. Calyx 5-toothed. Capsule 2-valved at the apex, with 2 placentae 

 on each valve. — Stem smooth, slender, much branched, purplish. Flowers 

 small, in loose slender spikes. Corolla purplish. 



1. E. Virginiana, Bart. — Under Beech-trees, in deep shades, Florida to 

 Mississippi, and northward. Aug.-— Stems 6'- 12' high. Flowers scattered. 

 Corolla of the sterile flowers 4" - 6" long, 4-toothcd, curved. 



2. CONOPHOLIS, Wallr. Sqiaw-koot. 



Flowers perfect, densely spiked. Calyx 2-bracted, tabular, 4-toothcd, deft on 

 the lower side. Upper lip of the corolla arching, notched ; the lower short, 3- 

 toothed. Stamens exsertcd. Capsule 2-valved, with 2 placentas on each valve. 

 — A thick and fleshy whitish simple herb, covered with imbricated scales. Flow* 

 era yellowish, spreading. 



l. C. Americana, Wallr. (Orobaache, L.) — Shady woods, Florida to 

 Mississippi, and northward. April. — Stems clustered from matted roots, 4'- 6' 

 high, \' thick. 



