14 FUMARIACE^. (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 pinnatifid 

 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. AVasatch 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, crestless 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. — jNIore common in our range than the type. Colorado to 

 Montana, and eastward to Missouri and Texas. 



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

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

 Mountains. 



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

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

 cate. — C. aurea, 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, AVatson. 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 Wasatch, Formerly referred to C. Caseana, which 

 Aas a more westerly range. 



4, C. Cusiekii, AA^atson. Leaves bipiunately divided ; the oblong-oval leaf 

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

 beyond its acute apex and folded bock over the narrow and somewhat crisped 

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

 Mountains. 



