TETRADYNAMIA SILICULOSA 377 



di n, i rn a or 8 inches high, yellowish brown, smooth, mostly growing in clue- 

 . rs * 1" nn al some wl,^ tuberous, parasitic 1 flU 1 to 3 or 4 inches Ion,, 

 tSck and nX clothed with numerous large imbricated persistent parchment. 

 u^^tspke 2 to 5 inches long, dense and thick (about an inch in diameter); 

 like scales , *pi of appressed lance-ovate acuminate scales (bracts, 



iss^sss^^ ihe iower r* m z ts 



S; 6«2 2 at the base of the calyx, lateral, sessile, ovatclanceolale, den u- 

 u e 'somewhat keeled and mucronate. Corolla dirty white, or pale brown ; inbe 

 7&SS vemricose below, contracted above; limb unequally o-lobec! 

 Jmm^ than the corolla ; anthers sanitate. fl^e thickish, about as 

 SnTtTthe stamens; ^ depressed-capitate. Ca^/e ovoid, acuminate. 

 Seeds small, obovoid, pale brown, shining. 



Bab. Woodlands ; Brandy wine ; Valley hills, *c. not common. Ft Jane. Fa July. 

 Obs. Collected in Pikeland, by Mr. Joseph Jacobs, prior to 1327 ; and subse- 

 quently by several other gentlemen, in different localities. 



2 O uviflora, L. Stem very short, often branched at base, cover- 

 ed with oblong scales ; flowers solitary, on scape-like pubescent pedun- 

 cles; calyx equally 5-clcft, naked at base; stamens included. Beck; 



Hot. p. 260. 



0. biflora. JWtf. Gen. 2. p. 59. Florul. Cestr.p. <2. 



OXE-FLOWEttBD OrOBAXCHE. 



Plant 4 to 6 inches high, pale brownish yellow, pubescent. Root perennial, 

 fi .mewhat tuberous, with coarse fibres, parasitic ? Stem half an inch to an inch 

 and half long, often branched at base, or several from the same root, covered with 

 a few oblong or ovate-oblong scales, which are somewhat sheathing. Peduncles 

 Z to 4 or 5 inches long, erect, slender, scape-like, pubescent, mostly 2 or 3 on each 

 short stem. Calyx sub-campanulate, membranous, nerved, pubescent; segments 

 lanceolate, acute, equal. Corolla pubescent, veined, yellowish white, tinged with 

 purple; tube a little curved, ventricose below J limb rather unequally o-lobed,and 

 deeper cleft than in the preceding; lobes bordered with a delicate purple pubes- 

 cence ; palate with 2 yellow ridges, and corresponding grooves beneath. Stam- 

 vis shorter than the corolla ; anthers white, oval, 2-lobed, lobes with a short acu- 

 minatum at base. S/y/eas long as the stamens, persistent; stigma bifid, lobes 

 acuminate, spreading. Capsule ovoid, acuminate. Seeds minute, oblong, striate. 

 Hob. Hilly woodlands: frequent. Fl. May- June. Fr. July. 



Obs* This is called parasitic, in the books ; but I have never observed any par- 

 ticular connection between it and other plants. Two other species arc enumera- 

 ted in the U. States. 



CLASS XI V. TETRADYMMIA/ 



Order 1. Siliculosa. 



a. Septum broad, oval: valves flat, or internally concave. 



* The plants of this Class constitute a perfectly natural groupe (Nat. Ord. 9. 

 Li7ull. Crucifbrje.). They are generally lurbaceoas, and acrid to the taste, with 

 terete, or sub-angulate stems, and alternate branches; leaves alternate, without 

 stipules; potters mostly in terminal subcorymbose racemes ; sepals 1, cruciate, 

 often gibbous at base, deciduous ; petals 4, cruciate, alternate with :he sepals; 



32* 



