Dicentra, FUMARIACE.E. 23 



I 



Var. Douglasii, Gray. Rather more slender and the leaves more finely divided ; 

 flowers smaller, 1 to 2 inches in diameter, more yellow ; torus with a narrower 

 limb or simply turbinate : seed tuberculate ; rhaphe well marked. E. Douglasii, 

 Benth. PI. Hartw. 296. 



Var. hypecoid.es, Gray. Still more slender, 4 to 12 inches high, the stems 

 leafy : flowers |- to 1 inch in diameter, with cylindrical torus : capsule 1 ^ inches 

 long. E. ht/pecoides, Benth". Trans. Hort. Soc. 2 ser. i. 408. 



Var. caespitosa, Brewer. Stems very short : leaves mostly subradical, shorter 

 than the scape-like peduncles ; the lobes narrowly linear, acute : flowers \ to an 

 inch broad : torus cylindrical : capsule 1|- to 2 inches long : seeds more densely 

 tuberculate. E. ccespitosa and tenuifolia, Benth. 1. c. 



Sunny exposures, particularly valleys and low hills, throughout the State and to "Washington 

 Territory, often in great abundance. The typical form seems confined to California. Some of the 

 latter reduced forms are found eastward through Arizona to New Mexico and S. Utah, but rarely. 

 This is the most conspicuous flower of the State flora, and sometimes large areas are made pain- 

 fully brilliant by its intense glow in the bright sunshine. The color varies from deep orange to 

 light sulphur-yellow, or even pure white. The larger-flowered varieties are common in culti- 

 vation under various names. 



2. E. minutiflora, Watson. Slender, branching, a foot high : flowers 3 lines 

 in diameter or less : torus without border : capsule 1 inches long, very narrow : 

 seeds smaller (hardly half a line in diameter), nearly smooth. Proc. Am. Acad. xi. 

 122. E. Calif ornica, var. tenuifolia, Gray in Bot. Ives Colorado Exp. 5, in part. 

 E. Californica, var. hypecoides, Watson, Bot. King Exp. 1 4. 



Peculiar to the interior basin, ranging from Northwestern Nevada ( Watson) to Sitgreaves Pass 

 in Western Arizona (Ncwberry) and Southern Utah, Parry. 



ORDER VI. PUMARIACE.SJ. 



Tender herbs, with watery and bland juice, dissected compound leaves, and per- 

 fect irregular hypogynous flowers with the parts in twos, except the diadelphous 

 stamens, which are 6 ; the ovary and capsule one-celled with two parietal placenta?. 

 Seeds, &c., as in Papaveracece, to which, being a small group of about 6 genera, it 

 has been united. Like that order, the petals are double the number of the sepals, 

 viz. four in two series. The main characters are given \inder the genera. 



1. Dicentra. Corolla flattened, heart-shaped or 2-spurred at the base. 



2. Corydalis. Corolla 1 -spurred at the base. 



1. DICENTRA, Borkh. 



Sepals 2, small and scale-like, sometimes caducous. Corolla flattened and cordate, 

 at least at base, of 2 pairs of petals ; the outer pair larger, saccate or spurred at base, 

 the tips spreading; the inner much narrower, spoon-shaped, mostly carinate or 

 crested on the back ; the small hollowed tips lightly united at the apex, the two 

 forming a cavity which contains the anthers and stigma. Stamens 6, in two sets, 

 viz. three before each of the outer petals and slightly adhering to their base, their 

 elongated filaments more or less united : the middle anther 2-celled ; the lateral 

 ones 1-celled. Style slender, persistent : stigma 2-lobed, each lobe sometimes 

 2-crested or horned. Capsule narrow, 1-celled, with 2 filiform parietal placenta;, 

 from which the valves at maturity separate. Seeds several or numerous, somewhat 

 reniforrn, with or without a crest. Perennials, sometimes with tuberiferous or 

 granuliferous subterranean base or shoots ; with ternately or pinnately compound 



