3SG FLORA OF TEXAS. 



angularly lobed, acuminate, long-petioled, pubescent ; pani- 

 cle tricliotomous, many-flowered; calyx purple; corolla 

 white, variegated with yellow and purple within, the lobes 

 undulate ; capsule slender, elongated, pendulous (C. cordi- 

 folia, Ell.); corolla 1' long; capsule 1° long. 



MARTYNIA, L. Unicorn-plaot. 



Calyx 5-cleft, 2-3-bracted; corolla irregular, tubular- 

 bell-shaped, unequally 5-lobed ; fertile stamens 2 or 4; 

 capsule woody, falsely 4-celled, ending in two long recurved 

 horns, and opening between them; seeds wingless. — Viscid 

 branching annuals; Zeaves petioled, entire, roundish, the 

 upper ones alternate ; fioiuers racemed. 



M. PROBOSCIDEA, Glox. Stem thick, at length prostrate ; 

 leaves round-cordate ; corolla IJ' long, whitish, spotted 

 with yellow and purple ; capsule crested on one side, shorter 

 than the beaks. 



83. BROOM-RAPE FAMILY. Order, Orobanchace^. 



Low, leafless, scaly herls, parasitic on roots, with bila- 

 biate didynamous flowers ; calyx 4-5-toothed or parted ; 

 corolla withering-persistent, tubular, the upper lip 2-cleft 

 or entire, the loAver 3-lobed; stamens inserted 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, an atropous, with the minute embryo at the base 

 of transparent albumen; flowers perfect or polygamous, 

 solitary or spiked. 



SYNOPSIS. 



Flowers polygamous, spiked; the lower ones fertile, the tipper sterile. Calyx 

 2-bracted, 5-toothed. Stem branching Epiphegcs. 



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

 thick, and fleshy Coxopholis. 



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

 5-lobed Aphtllon. 



