Dicentra. FUMARIACEyR. 23 



Var. Douglasii, (^>nxy. I^ntlier more slondf^r and tlic leaves more finely divideil ; 

 flowers smaller, 1 to 2 inches in diameter, nu)re yellow ; torus with a narrower 

 lirab (tr siui|ily tiuliinate: seed tuberculate ; rhaphe well marked. — K. Dowjlasii, 

 Bcnth. n. IlaVtw. 21)0. 



Viir. hypecoides, Gray. Still raore slender, 4 to 12 inrlics hif,d), the stems 

 lenfy : llow(!r3 ^ to 1 inch in diameter, with cylindrical t^irus : capsule 1^ inches 

 long. — E. /ii/pecoides, Benth. Trans. Ilort. Soc. 2 ser. i. 408. 



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

 than the scapo-liko podunclca ; tlu^ lobes narrowly linear, acutn : (lowers A to nn 

 incli broad: torus cylindrical: caj)sulo l|to 2 in(;hes long: seeds more densely 

 tuberculate. — E. cceapitosa and (enui/olia, Bcnth. 1. c. 



Sunny oxposnros, pnrticulnrly valloy.s nnd low liilla, tliroupliont tlio Stnto find to "Wa-sliiiiRton 

 Territory, often in great Rbundance. Tlio typical form soenis con(inp(l to (.'aliforiiia. Some ofthe 

 latter reduced forms aie found eastward througli Arizona to New Mexico and S. Utflh, but rarely. 

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

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

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

 vation under various names. 



2. E. minutiflolra, 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. Callfornica, var. tenuifolia^ Gray in Bot. Ives Colorado Exp. 5, in j)art. 

 E. Calif arnica, \9.v. hypecoides, Watson, Bot. King Exp. 14. 



Peculiar to the interior basin, ranging from Northwestern Nevada {M'ataoii) to Sitgreaves Pass 

 in Western Arizona {Newberry) and Southern Utah, Parry. 



Order VI. FUMARIACEiEJ. 



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, kc, as in Papaveracece, to which, being a small group of about G genera, it 

 has boon united. Like that order, the petals aro doubin the number of tlio sepals, 

 viz. four in two sorios. The main charactora are given under tlio gonora. 



1. Dicentra. Corolla flattened, heart-shaped or 2-8purred 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-shaf>ed, mostly carinato 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 loss united : the middle anther 2-celIed ; the latoml 

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

 2-crc8ted or horned. Capsule narrow, 1 -colled, with 2 filiform parielnl placontic, 

 from which the valves at maturity seimmto. Seeds .sovemi or nnmeiY>u8, somewhat 

 reniform, with or without a crost. — IVrennials, sometimes with tuberif<T0U9 or 

 granuliforous subternmean l>aso or shoots ; with ternately or pinnately ccMupouml 



