484 



Capnoides curvisiliquum (Engelm. ) Knntze, Rev. Gen. PI. ii, 14 (1891) ; Corydalis 

 curviniliquu Kngcliii.; dray, Man. oil. ;">, 62 (1867). 



This i.s not uiicDiumon in tlie lUack Hills: Sylvan Lake, altitude l,90(t in., .June 8; 

 Hot Springs, altittulc 1. ().")() ni., .June 13 (No. 513). 



NYMPHiEACEiE 



Nymphaea advena Solaml. in Ait. llort. Kew. ii, 226 (1789). Leaves of this spe- 

 cies were .«een in Kapid Creek, 6 miles above Rapid City, bnt no specimens were 

 secured. 



CRUCIFERiE. 



Draba carolinana micrantha (Nntt.) Gray, Man. ed. 5, 72 (1867) ; Draba micrantha 

 Nutt. ; Torr. & Gr. Fl. i, 109 (1838). 



Barren hills, rare: Hot Springs, altitude 1,100m., June 13 (No. 514). 



Draba nemorosa L. Sp. PI. ii, 643 (1753). 



The specimens of Hi is collection are pubescent even to the pods, and may belong 

 to the variety hehecarpa Lindl., but the hairy form has been regarded, by Do Caudolle 

 and others, as the typical J), nemorosa L. 



Early in the spring: Custer, altitude 1,650 m.. .June 1 (No. 515). 



Draba aurea Vahl. in Horneni, Fors. Dansk. (Econ. PI. ed. 2, 599 (1806). 



My specimens diftcr from the common form in being more slender, and in having 

 entire, thin leaves, smaller, paler petals with more slender claw, and longer, decid- 

 edly twisted pods. The peduncles and pedicels are ciliato and the sepals narrow. 

 I took it for the variety stylosa. It resembles somewhat the original specimens of 

 this, from Fendler's collectiou; but the pods are much longer and the style shorter. 

 I do not wish to give it a A-arietal name, as I have specimens from only one locality. 



In a shady jilace, at the foot of a high cliff, below Sylvan Lake, altitude 2,0(X) m., 

 July IK (No. 516). 



Arabis glabra (L. ) Heruh. Verz. Sy.st. Erf. 195 ( 1800) ; Titrrith glabra L. Sp. PI. ii, 

 666 (1753). 



Rare: Along the railroad in Elk Canyon, altitude 1,200 m., .June 29 (No. 517). 



Arabia hirsuta (L. ) S<op. Fl. Carn. ed. 2. ii. 30 (1772) ; Turritis hirsula L. Si>. PI. ii, 

 666 (1753). 



('omm<ui: Custer, altitude 1,(!.")0 m.. May 30, .Tune 3; Hot Springs, altitude 1,100 m., 

 •June 13; Elk Canyon, altitude 1,200 ni., June 29. The specimens from the latter i)lace 

 are unusually sleniler (No. 518). 



Arabis holbcEllii Hornem. Fl. Dan. xi, 1. 1879 (1827). 



The llowers in my specimens are sehlom reflexed; the ]>o(is .are a little curved :md 

 rellexod. 



Connnon: Custer, altitude 1,650 m., .Iiino5; Elk Canyon, altitude 1.200 in., .hine 

 29; Lead City, .iltitiidc l,.-.0() m., .July 6 (No. 519). 



Arabis holboellii retrofracta ((Graham); Arabia retrofracta ^\vn\v.\n\. I'.dinb. Phil, 

 .lonrn. 344 (1829). 



The latter has generally been regar<led as a synonym of ./. hoUxrJii. There seem, 

 however, to be two or tiiree different forms of this s))ecies, one of which has more 

 slender jiods, which are jierfectly straight, and smaller flowers. This agrees with the 

 description of Turritis retrofracta in Hooker's Flora Boreali-Americana, Volume I, 

 page 11. The root leaves are spatulate, petioled, the stem leaves sessile, lanceolate, 

 with a hasttitc, half-clasjiing base. 



Elk Canyon, .altitude 1,200 m., .June 29 (No. 520). 



Stanleya pinnata (Pureli ) Hritton. Trans. N. Y. Acad, viii, 62 (1889) ; flromrphinala 

 Pursb, Fl. ii,739 (1814). 



On )>rairie, 1 mile east of Fall Kiver Falls, altitude -1,000 m., June 18 (No. 521). 



