512 Oedeb 83.— BIGNONIACE^ 



amous, the upper flowers complete but sterile, the lower imperfect, fer- 

 tile ; Calyx 5-toothed ; $ corolla tubular, compressed, curved, upper lip 

 emarginate ; stamens barely included ; $ corolla 4-toothed, short, 

 deciduous, without expanding ; stamens imperfect ; capsule, 2-valved, 

 opening on the upper side. — Parasite on the roots of the beech. Branches 

 simple, spicate, floriferous their whole length. 



E. Virginiana Bart. — In Beech woods, Can. to Ga. and ]Cy. Root a ball of rigid, 

 short, brittle radicles. Plant If high, leafless, of a dull, red color, glabrous, 

 branching and flower-bearing its whole length. Ha. alternate, subsessile, brown- 

 ish white, the sterile, 4 to 5" long. Aug., Sept. 



2. CONOPH'OLIS, Wallroth. Squaw Root. {Gr. iMVog, a. cono, (poXtg, 

 a scale; from its resemblance.) Flowers perfect, crowded, spicate ; calyx 

 with 2 bractlets at the base, unequally 5-cleft ; corolla ringent, Slipped, 

 tube curved, upper lip 2-lobed, lower 3-parted ; anthers sagittate 2-celled, 

 cells acute at base ; capsule with 2 placentae on each valve. — Stem 

 short, thick, simple, covered with ovate-lanceolate, acute, imbricated 

 scales, the upper with the fls. subsessile in their axils. 



1 C. Americana "Wallr. Very smooth ; stem very thick ; scales oval-lanceolate ; 

 calyx more deeply cleft on the lower side ; cor. ventricous ; stam. exserted. — Old 

 woods, Can. to Ga. and La. Stem 4 — 1' high, and near 1' thick, of a brownish 

 yellow, covered with pale, polished scales regularly imbricated as in a Pme cone. 

 July. (Orobanche, L.) 



2 C. Ludoviciana. Glandular pubescent; stem rather thick, very short; scales 

 ovate ; cal. subequally and deeply cleft ; cor. tubular, much longer than the 

 bracts ; stam. Included. — Alluvial soil, lU. (Hall, fide Gray), to Nebraska. St. 

 3 to 4' high. Pis. very numerous and crowded. Cal. segm. linear, acute. Cor. 

 purple. Oct. (Orobanche, Nutt. Pbilipsoa, Don.) 



3. APHYL'LON, Mitchell (Orobanche, L.) Naked Broomrapk. 

 (Gr. a, privative, (pvXXov, a leaf; alluding to its leafless character.) 

 Flowers perfect, solitary, on long bractless peduncles or scapes ; calyx 

 regularly 5-cleft, campanulate ; corolla tube elongated, curved, border 

 spreading, subequally 5-lobed ; anthers included, cells distinct, mucron- 

 ate ; capsule with 4, equidistant placentae. Plants glandular, pubes- 

 cent. St. very short, producing at the summit, 1, 2, or many flower 

 stalks, and few if any scales. 



1 A. uniflora Torr. & Gr. Fed. in pairs or simple, naked, each l-flowered. — A 

 small, leafless plant, with the general aspect of a Monotropa, found in woods and 

 thickets. Can. and U. S. St. not exceeding ^' in length. This divides at its 

 top generally into 2, scape like, erect, round, simple, naked peduncles 4 to 5' high, 

 downy, purplish white, with a nodding flower at the top,*of the same hue. Jn., Jl. 



2 A. fasoiculata Torr. & Gr. Fed. many, nearly terminal, about the length of 

 the stem ; scales few, ovate ; cor. lobes short, rounded. — Islands in Lake Huron 

 (Engelman, fide Gray), W. to Nebraska. Stem arising 2 to 3' out of the ground. 

 Fed. 6 or more, same length. Fls. pale purple. May. 



Order LXXXIII. BIGNONIACE^. Trumpet Flowers. 



Trees, shrubs, or rarely lierhs, often climbing or twining, with opposite, exstipu- 

 late leaves. Flowers monopetalous, irregular, 5-meroua, showy. Stamens 5, 1 or 3 

 sterile, didynamous, or diandrous. Anthers 2-celled. Ovary 2-celled, seated in a 

 fleshy disk. Style 1. Stigma of 2 plates. Capsule coriaceous, 1 to 2-oelled, 

 2-valved, many-seeded. Seeds generally winged, destitute of albumen. 



