512 ORDER 83. BIGNONIACE^E. 



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. Virginiaiia Bart. In Beech woods, Can. to Ga. and Ky. 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. Fls. alternate, subsessile, brown- 

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



2. CONOPH'OLIS, Wallroth. SQUAW ROOT. (Gr. K&vog, a cone, 0oA/?, 

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

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

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

 cells acute at base ; capsule with 2 placentas 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 7' high, and near 1' thick, of a brownish 

 yellow, covered with pale, polished scales regularly imbricated as in a Pine 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, 111. (Hall, fide Gray), to Nebraska. St. 

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

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



3. APHYL'LON, Mitchell. (Orobanche, L.) NAKED BROOMRAPE. 

 (Gr. a, privative, fyvXXov, 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-lobcd ; 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. tmiflora Torr. & Gr. Ped. in pairs or simple, naked, each 1-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. fasciculata Torr. & Gr. Ped. many, nearly terminal, about the length of 

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

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

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



ORDER LXXXIII. BIGNONIACEJE. TRUMPET FLOWERS. 



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

 late leaves. Flowers monopetalous, irregular, 5-merous, 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-celled, 

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



