Petals all permanently united in a cordate-ovate corolla, becoming spongy-cellular and persistent, enclosing the small, few-seeded pod. Seeds not crested. Stigma 2-crested. Filaments monadelphous below in a tube which is adherent to the corolla, diadelphous at the summit.--A climbing biennial, with thrice-pinnate leaves, cut-lobed delicate leaflets, and ample panicles of drooping white or purplish flowers. (Dedicated by Rafinesque to _Major Adlum_.) 1. A. cirrhòsa, Raf.--Wet woods; N. Eng. to Mich., E. Kan., and southward. June--Oct.--A handsome vine, with delicate foliage, climbing by the slender young leaf-stalks over high bushes; often cultivated. 2. DICÉNTRA, Borkh. DUTCHMAN'S BREECHES. Petals slightly cohering into a heart-shaped or 2-spurred corolla, either deciduous or withering-persistent. Stigma 2-crested and sometimes 2-horned. Filaments slightly united in two sets. Pod 10--20-seeded. Seeds crested.--Low, stemless perennials (as to our wild species) with ternately compound and dissected leaves, and racemose nodding flowers. Pedicels 2-bracted. (Name from δίς, _twice_, and κέντρον, _a spur_;--accidentally printed DICLÝTRA in the first instance, which by an erroneous conjecture was afterwards changed into DIÉLYTRA.) [*] _Raceme simple, few-flowered._ 1. D. Cucullària, DC. (DUTCHMAN'S BREECHES.) Scape and slender-petioled leaves from a sort of _granulate bulb_; lobes of leaves linear; _corolla with 2 divergent spurs_ longer than the pedicel; _crest of the inner petals minute_.--Rich woods, especially westward.--A very delicate plant, sending up in early spring, from the cluster of grain-like tubers crowded together in the form of a scaly bulb, the finely cut leaves and the slender scape, bearing 4--10 pretty, but odd, white flowers tipped with cream-color. 2. D. Canadénsis, DC. (SQUIRREL CORN.) Subterranean shoots bearing scattered _grain-like tubers_ (resembling peas or grains of Indian corn, yellow); leaves as in n. 1; _corolla merely heart-shaped_, the spurs very short and rounded; _crest of the inner petals conspicuous, projecting_.--Rich woods, especially northward. April, May.--Flowers greenish-white tinged with rose, with the fragrance of Hyacinths. [*][*] _Racemes compound, clustered._ 3. D. exímia, DC. Subterranean shoots scaly; divisions and lobes of the leaves broadly oblong; corolla oblong, 2-saccate at the base; crest of the inner petals projecting.--Rocks, western N. Y., rare, and Alleghanies of Va. May--Aug.--Coarser-leaved than the others; scapes 6--10´ high. 3. CORÝDALIS, Vent. Corolla 1-spurred at the base (on the upper side), deciduous. Style persistent. Pod many-seeded. Seeds crested or arilled. Flowers in racemes. Our species are biennial, leafy-stemmed, and pale or glaucous. (The ancient Greek name for the crested lark.) [*] _Stem strict; flowers purplish or rose-color with yellow tips._