398 D1ADELPH1A IIEXANDRIA 



lo the length, crownod with oblique radiating beaks at summit. Seeds subreniform, 



•r lunate, somewhat scabrous, dark brown. 



Hub. Cultivated lots ; roadsides, &c. frequent. Fl. July— Sept. Fr. Aug— Octe. 



Obs. This foreignor is completely naturalized ; and is becoming a troublesome 

 weed in our cultivated grounds. It is said that the seeds, roasted, make a lolera* 

 Me substitute for coffee. 



CLASS XVI. DIADELPHIA. 



Order 2. Ilcxandria* 



329. DIELYTRA (Diclytra. DC). Hook. Am. I. p. 35. 

 {Gv. Dis> double, and Elytron, an involucre, or sheath ; in allusion to the flowers.] 



Sepals 2, membranaceous, small, deciduous. Petals 4, cruciate, the 

 2 outer ones equally spurred, or gibbous, at base. Capsule oblong, 

 siliquose, 2-valved, dehiscent, many-seede.l. 



Herbaceous: mostly stemless; root tuberous; leaves radical, multifid ; flowers 

 racemose on scapes. Nat. Ord. 1U. Lindl. Fumariacea. 

 1. D. CuCitllaria, Hook. Tubers trigonous-ovoid ; raceme 4 to 10- 

 flowercd, secund ; spurs elongated, straight, rather acute, divergent. 

 Hook. Am. 1. p. 35. ( Diclytra. DC. Heck, Hot. p. 23. ). 

 Fumaria Cucullaria. WilXd. Sp. 3. p. 857. Mx. Am. 2. p. 51. JUu 

 Ketv. 4. p. 238. 



CorydalLs Cucullaria. Per 8. Syn. 2. /;. 269. MuhL Catal. p. 63. 

 Pursh, Am. 2. p. 462. Mitt. Gen. 2. p. 86. Hart. Phil. 2. p. 68. 

 BigeU Host. p. 263. Florid. Cestr. p. 78. Torr. Comp. p. 259. Eat. 

 •1 fan. p. 110. 

 Hood-likk Di elytra. J'ulcfd — Dutchman's Breeches. 



Root perennial, tuberous, with fibres below; tubers trigonous-ovoid, acuminate 

 (often trigo nous* turbinate, and scarcely acuminate), pale red, thickly sprinkled 

 over wit:, nail oblong par pie dots, the floeti within whitish,— the principal tubers 

 surrounded at bate wiih numerous smaller ones sub- imbricated after the manner 

 of bulb-scales. leaves radical, somewhat triternate, multifid, smooth, glaucous 

 beneath, the segments linear-oblong, mucronate wiih a short purplish cartilagin- 

 ous point ; petioles 3 to 6 or 8 inches long. Flowers inodorous. S-ape 6 to 10 

 inches high, slender, naked ; raceme simple, elongated, 4 to 6, 8, or lOflowered, 

 secund ; pedicels short, with each a roundish-ovate concave denticulate bract at 

 base, — and also a pair of lance-ovate opposite spreading bracts near the flower, 

 crosswise with the sepals, or in a line with the spurs. Sepals white, lance-ovate, 

 keeled, mostly appressed, nearly half as long as the corolla. Petals 4; the 2 

 outer ones larger, arranged crosswise with the sepals, produced at base into 1 

 straight tapering diverging spurs 1 third to half an inch long, white, contracted 

 and yellow at the throat, with an ovate concave spreading apex, or border, the t 

 inner petals opposite tho sepals, linear-oblong, keeled, dilated and fiddle-form at 

 summit, concave, with the keel dilated to a crest, cohering with each other, al 

 apex, and embracing the stigma, yellowish. Ovary subcompressed, with a rib or 

 suture on each side ; style ancipital, tapering ; stigma compressed crosswise wit* 

 the style, broad-ovate. 



Hob. Rich, moist, shaded grounds: frequent. Fl. April— May. Fr. May— June. 



Ofrt . I find this species to be much more common than I formerly supposed. 



