484 
Capnoides curvisiliquum (Engelm,) Kuntze, Rev. Gen. PI. ii, 14 (1891); Corydalis 
curvisiliqua Engeln.; Gray, Man. ed. 5, 62 (1867). 
This is not uncommon in the Black Hills: Sylvan Lake, altitude 1,900 m., June 8; 
Hot Springs, altitude 1,050 m., June 13 (No. 513). 
NYMPHAACES. 
Nymphea advena Soland. in Ait. Hort. Kew. ii, 226 (1789). Leaves of this spe. 
cies were seen in Rapid Creck, 6 miles above Rapid City, but no specimens were 
secured. 
CRUCIFPER. 
Draba carolinana micrantha (Nutt.) Gray, Man. ed. 5, 72 (1867); Draba micrantha 
Nutt.; Torr. & Gr. Fl. i, 109 (1858). 
sarren hills, rare: Hot Springs, altitude 1,100m., June 15 (No, 514). 
Draba nemorosa L. Sp. P1. ii, 643 (1753), 
The specimens of this collection are pubescent even to the pods, and may belong 
to the variety hebecarpa Lind1., but the hairy form has been regarded, by De Candolle 
and others, as the typical ). nemorosa L. 
Early in the spring: Custer, altitude 1,650 m., June 1 (No. 515). 
Draba aurea Vahl. in Hornem, Fors. Dansk. Gicon. V1. ed. 2, 599 (1806). 
My specimens differ 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 ciliate and the sepals narrow. 
I took it for the variety stylosa. It resembles somewhat the original specimens of 
this, from Fendler’s collection; but the pods are much longer and the style shorter. 
I do not wish to give it a varietal name, as I have specimens from only one locality. 
In a shady place, at the foot of a high cliff, below Sylvan Lake, altitude 2,000 1n., 
July 18 (No, 516). 
Arabis glabra (l.) Bernh. Verz. Syst. Erf. 195 (1800); Turritis glabra L. Sp. P1. ii, 
666 (1753). 
Rare: Along the railroad in Elk Canyon, altitude 1,200 m., June 29 (No. 517). 
Arabis hirsuta (L.) Scop. Fl. Carn. ed. 2, ii, 30 (1772); Turritis hirsuta L. Sp. P1. ii: 
666 (1753). 
Common: Custer, altitude 1,650 m., May 30, June 3; Hot Springs, altitude 1,100 m., 
June 15; Elk Canyon, altitude 1,200 m., June 29. The specimens from the latter place 
are unusually slender (No. 518). 
Arabis holboellii Hornem. FI. Dan. xi, t. 1879 (1827). 
The flowers in my specimens are seldom reflexed; the pods are a little eurved and 
retlexed. 
Common: Custer, altitude 1,650 m., June 5; Elk Canyon, altitude 1,200 m., June 
29; Lead City, altitude 1,500 m., July 6 (No. 519). 
Arabis holbcellii retrofracta (Graham); Arabis retrofracta Graham, Edinb. Phil. 
Journ. 344 (1829). 
The latter has generally been regarded as a synonym of 4. holbalii. There seem, 
however, to be two or three different forms of this species, one of which has more 
slender pods, which are perfectly straight, and smaller flowers. This agrees with the 
description of Vurritis retrofracta in Hooker’s Flora Boreali-Americana, Volume I, 
page 41. The root leaves are spatulate, petioled, the stem leaves sessile, lanceolate, 
with a hastate, half-clasping base. 
Elk Canyon, altitude 1,200 m., June 29 (No. 520). 
Stanleya pinnata (Pursh) Britton, Trans. N. Y. Acad. viii, 62 (1889); Cleome pinnata 
Pursh, Fl. ii, 739 (1814). 
On prairie, 1 mile east of Fall River Falls, altitude 1,000 m., June 18 (No, 521). 
