98 FUMARIACE^E. ( on/dalis. 



C. crystallina, Engelm. Ascending or nearly erect, a foot or less high : flowers bright 

 yellow, aliuiit two thirds inch long, in a rather close or strict spike; spur mostly horizontal, 

 nearly as long as tiie body; dorsal crest sliorter than the lunul but A-cry liroad and salient, 

 usually 3-4-dentate : capsules linear-oblong, terete, half or tliree fourtiis inch long, erect on 

 extremely short pedicels, densely pruiuose with (when fresh) transparent crystalline vesicles 

 (as in the Ice-plant): seeds with acute margins, the coat minutely tubercular-reticulated. 

 — Engelm. in Gray, Man. ed. .5, 62. C. aurea, var. crystallina, Torr. & Gray, Fl. i. 665.1 — 

 Prairies and fields, Arkansas and S. W. Missouri ; first coll. by Ntittall. 



C. flavula, DC. Slender, soon diffuse, branching: flowers usually pale yellow (rarely 

 "bright" or even "deep" yellow) a fourth or third inch long, slender-pedicelled and con- 

 spicuously bracted ; spur short anddecurved; outer petals surpas.sing the inner, acute or 

 acuminate; dorsal crest very salient and 3-4-deutate: capsules linear and slender, torulo.se, 

 pendulous or spreading on filiform pedicels: seeds comparatively large, acutely wing- 

 margined, toward the margins rugose-reticulated. — Prodr. i. 129; Gray, Man. ed. 5, 61. 

 C. aurea, var. flavula, Wood, Bot. & Fl. 34. C . flavldula,Chwpm. Fl. ed. 2, 604. Fumaria 

 flavuia, Raf. in Desv. Jour. Bot. i. 224 (1808).2 — Rocky or gravelly places, Canada, on shore 

 of L. Erie, to Virginia, Tennessee, Missouri, and Louisiana. 



C. micrantha, Ghay. Slender and diffuse, a span or two high, with habit of Cjlarnl'i, but 

 with smaller bracts and short pedicels: flowers pale yellow; when well developed fully a 

 third inch long, narrow, with s\tuT a line or two long, and a lunate mostly entire crest on 

 the hack of the mucronate-tijjped hoods ; often producing only cleistogamous and smaller 

 flowers, destitute of spur and witli or without the crest : capsules linear, torulose, a.scending 

 on short pedicels: seeds turgid and obtuse at margins, as in true C. aurea. — Bot. Gaz. xi. 

 189. C. aurea, var. micrautha, Engelm. in Gray, Man. ed. 5, 62. C. aurea, var. nustralis, 

 Chapm. Fl. ed. 2, 604.^ — Waste or open ground, coast of N. Carolina, Havard, to Florida, 

 Texas, and Missouri.* Dr. Havard only has yet collected specimens showing both the 

 ordinary flowers and some cleistogamous and spurless ones. 



Order X. CRUCIFER^. 



The genera Draha, Lesrjuerella, Nasturtium, Dn/Ojictalon, Plati/spermum, Seloua, Parri/a, 

 Learenworthia, Dentaria, Cardamine, Arahis, and Streptanthus by S. Watson ; the remaining 

 genera, together with the ordinal character and generic key, by B. L. Robinson. 



Herbaceous or rarely snffruticose plants with a watery juice. Flowers perfect, 

 regular,^ racemose, spicate, or somewhat corymbose, and (with rare exceptions) 

 ebracteate. Sepals 4, usually oblong, often colored, erect and appressed to 

 the corolla or spreading during anthesis ; the outer pair median ; the inner 

 j)air lateral, similar or more saccate at the base. Petals 4 (rarely wanting), 

 hypogynous, in a single whorl, equal, alternating with the sepals, more or less 

 distinctly unguiculate, entire, infrequently bifid or very rarely toothed or lobed, 

 yellow, white, roseate, or purple. Stamens normally 6 (rarely 4 or 2), hy- 

 pogynous, of unequal length (didynamons) ; the two outer ones lateral, shorter 

 than the others, opposite the inner sepals; the remaining four (arising by 

 collateral chorisis of an original median inner pair) longer, nearly opposite the 



1 Add syn. Cnpnoides cryHnUinum. Kuntze, 1. c. 



2 Add syn. Cnpnnides flnrHlum, Kuntze, 1. c. 



3 Add syn. Capnoides micrantlium, Britten, 1. c. 



4 Said by Patterson (PI. 111. 3) and Hill (Bull. Torr. CI. xvii. 172) to grow throughoiit Illinois; 

 also reported from Minnesota by MacMillan, Metasji. Minn. Val. 2.5.0. Specimens from these States 

 have not been seen by the editor. 



^ Except sometimes in Strepturdhus. 



