Dielt/tra.] ■ FUMARIACE^ 



35 



deciduis, placentis 2, persistentibus. — Herba Boreali -Americana su^co scmguineo festal 

 foliis kmgius hasi cuneatisy panicula laxiore, cenma. 



1. S, canadensis. — Linn, Sp. PL p. 723. Curt in Bot Mag, t 162, Pursh^ 12. Am. v. 2. 

 p. 366. BigeL Fi. Bost. ed 2. p. 214. Elliott^ Carol v. 2. p. 13. 



Hab. Throughout Canada, — Root a powerful emetic, yielding; when bruised a bright orange-coloured 

 fluid, whence called Blood-wort. Flower at first embosomed in the young convolute leaf, large, white, and 

 appearing very early in the season. Long after the inflorescence, the reniform or cordate, lobed, and veiny 

 leaves continue to grow. 



Ord. VIIL FUMARlACEiE. DC 



I. DIELYTRA. (Diclytra. DC.) 



Petala 4, 2 exteriora basi sequaliter calcarata, aut gibbosa. SiUqua bivalvis, poly- 

 sperma. — Herbae perennes, Fiores racemosiy albi aut purpurascentes. DC. 



L D. cuadlaria ; calcaribus 2 rectis divaricatis acutiusculis, scapo nudo, racerao 

 simplici. — De Cand. Prodr. v. \. p. 125. — Fumaria cucuUaria. Linn. Sp. PL p. 983. Mic/i. 

 Am. V. 2. p. 51. Purshy FL Am. v, 2. p. 462. Sims in Bot. Mag. t, 1127. — Corydalis cucul- 

 laria. Pers. — BigeL FL Bost. ed. 2, p. 263. 



Hab. Throughout Canada; and common on the subalpine regions of the Blue Mountains, in open woody 

 places, North- West America. — Professor De Candolle makes a variety of this plant with divaricated spurs; 

 but in all my specimens the spiu^ are divaricated when the flowers are fully expanded. Aptly called in 

 America Dutchmai^s Breeches. 



2. D.fonnosa; calcaribus 2 brevibus subincurvis obtusis, scapo nudo, racemo sub- 

 composito, stigmate biangulato. — De Cand. Prodr. v. \.p. 125. Elliott, Carol, v. 2. p. 177. 



■Fumaria formosa. Andr. Bot, Repos. t. 393, Sims in Bot. Mag. t. 1355. — Corydalis 

 formosa. Pursh, FL Am. p. 462. 



Hab. Nootka Sound, Mr. Menzies. Canada. Pursh. 



3. D. eximia ; calcaribus 2 brevibus subiiicurvis obtusis, scapo nudo, racemo subcom- 

 posito, stigmate quadrangulato. — De Cand. Prodr. v. I, p. 126. Bot, Meg. t. 50, 



^, foliorum laciniis angustis linearibus, — Corydalis canadensis. Goldie in Edin. PhiL 

 Joum. 1822. p. 330. De Cand. Prodr. v. 1. p. 126. 



Hab. Nootka Sound, in Banks. Herb. (See Ker in Bot. Beg.) j3. Canada. Mr. Goldie. — Closely allied 

 as this species is to B. formosa, 1 believe the difference in the stigma will be found constant. Corydalis 

 canadensis^ which has the flowers white, I am now inclined to consider as a variety of this plant, with the 

 segments of the leaves very narrow, 



4. D. tmuifolia; calcaribus 2 brevissirais obtusis, scapo nudo uni-trifloro, pedicellis 

 calyce brevioribus, foliis multifidis, lobulis linearibus.— i)e Cand. Prodr. v, \, p. 126. De 

 Less, Ic. V. 2. t. 9, / b. — Corydalis tenuifolia. Pursh, FL Am. v. 2. p. 402. 



Hab, On the North-West coast of America. Pursk, — A small plant, with proportiou^ly yery large 

 flowers. May not Pursh be mistaken in considering this an American species ? He describes it from Pallas' 

 plant in the Lambertian Herbarium ; and Pallas' plant, according to De Candolle and De Lessert, is from 



Kamtschatka. 



