14 FOMAUIACEJE. (FUMITORY FAMILY.) 



1. DICENTRA, Borkh. 



Sepals 2, small and scale-like. Petals 4, in two sets ; the outer pair larger, 

 saccate at base, the tips spreading ; the inner much narrower, spoon-shaped, 

 the hollowed tips lightly united at the apex, thus forming a cavity which con- 

 tains the anthers and stigma. Middle anther in each set 2-celled, lateral ones 

 1-celled. Stigma 2-lobed. Pod 1-celled. Glabrous perennials with the 

 fleshy root surmounted by a bulb-like cluster of fleshy grains and ternately 

 or pinnately compound leaves. 



1. D. uniflora, Kellogg. The 3 to 7 divisions of the leaves piunatifid 

 into a few linear-oblong or spatulate lobes : scape 2 to 3 bracted, 1 -flowered : 

 flowers flesh-colored, ^ inch long, the divergent or reflexed tips of the outer 

 petals equalling or exceeding the erect gibbous-saccate base ; inner ones not 

 crested, the blade broadly hastate : pod abruptly beaked with the short style. 

 Alpine. Wahsatch and Teton Mountains, and westward in the Sierra 

 Nevada. 



2. CORYDALIS, DC. 



Corolla one-spurred at the base on the upper side. Otherwise as in Dicentra. 

 * Corolla golden-yellow ; spur shorter than the rest of the flower. 



1 . C. aurea, Willd. Stems low or decumbent : racemes simple : the 

 slightly decurved spur not half the length of the rest of the flower : tips of the 

 outer petals blunt, c restless and naked on the back: pods usually pendent: 

 seeds smooth and even, turgid, marginless, partly covered by the scale-shaped 

 aril. From Colorado northward and eastward. 



Var. OCcidentalis, Gray. Spur longer : pods erect : seeds lenticular with 

 acute margins, More common in our range than the type. Colorado to 

 Montana, and eastward to Missouri and Texas. 



Var. micrantha, Engelm. Flowers small, nearly spurless, on short pedi- 

 cels : pods ascending. From the Western Mississippi States to the Uinta 

 Mountains. 



2. C. Clirvisiliqua, Engelm. Differs from the last in having longer 

 4-angular pods ascending on vert/ short pedicels : the acute-margined seeds muri- 

 ca t e . C. aurca, var. curvisiliqua, Gray. Common in the mountains of 

 Colorado and southeastward. 



* * Corolla white or cream-color ; spur longer than the rest of the flower. 



3. C. Brandegei, Watson. Tall and stout (5 feet high) : leaves twice 

 or thrice pinnately divided ; the lanceolate leaflets i to 1 inch long, acute or 

 acuminate : hood not crested, the margins folded back and not projecting 

 beyond the obtuse summit : pod oblong-obovate, obtuse, reflexed. Mountains of 

 S. Colorado and in the Wahsatch. Formerly referred to C. Caseana, which 

 has a more westerly range. 



4. C. Cusickii, Watson. Leaves Bipinnately divided ; the oblong-oval leaf- 

 lets acute at each end, half-inch long : the broad margins of the hood produced 

 beyond its acute- apex and folded back over the narrow and somewhat crisped 

 or erose crest : pod acute. Extending from Oregon into the Bitter Boot 

 Mountains. 



