374 BOTANICAL GAZETTE [MAY 
only the tips divaricate, reticulately veined: seed-body large, dark, 
narrowly winged on the margins and with a depressed summit. 
This species has passed for D. Andersonii and is a close relative of it. The 
typical form of that seems to be confined to western Nevada and adjacent 
California. Taking those characters on which. Dr. Gray laid stress, namely, 
“very glabrous’’; “follicles oval or oblong, not over half an inch in length”; 
“seed body small and broadly winged,” as diagnostic, one is almost forced to 
separate this pubescent long-carpelled form. The segregate occurs in interior 
northern Nevada, Idaho, and adjacent Oregon. No. 1779, House Creek, 
Idaho, June 29, 1912, is the type number. 
ARABIS MENziest lata, n. var.—Closely allied to the species, 
but the pods broader (as much as 6mm.), 2.5-4.5 cm. long, 
usually about twice as long as the pedicels; style nearly wanting. 
As shown in Proc. Biol. Soc. Wash. 17:91 and 18:187, the PHOENICAULIS 
section of Parrya is less aberrant in Arabis than in Parrya. Typical Arabis 
(Parrya) Menziesii will not run to Parrya by any of the keys to the cruciferous 
genera, but does run to Arabis by most, if not all, of such keys. The variety 
here described is probably the P. Menziesii of Bot. King Rep. 14, in part. 
Fully mature material is our no. 1838, from lava cliff pockets, House Creek, 
Idaho, June 30, 1912. 
ARABIS PEDICELLATA A. Nels., Proc. Biol. Soc. Wash. 17:91 is 
Parrya Menziesii lanuginosa Wats., and may best become ARABIS 
MeENZztIEst lanuginosa. 
Horkelia beneolens, n. sp.—Caudex simple or branched, more 
or less fleshy or becoming woody, thick because of the dense coat of 
dead brown petioles, the flaccid sordid herbage clammy with a 
short glandular pubescence: stems few-several from each crown, 
sparingly leafy, 7-15 cm. long including the rather open inflores- 
cence: leaves several from each crown, mostly oblong, with 5-9 
pinnae, on slender petioles: pinnae 7-15 mm. long, alternate or 
irregularly opposite, oblong, flabelliform or suborbicular, more or , 
less deeply palmately parted into oblong obtuse or acutish lobes; 
stem-leaves short, with fewer pinnae (3~5) and short petioles (or 
subsessile); stipules ovate-oblong: flowers few-many on slender 
pedicels in an open cyme: calyx rotate, with flat pentagonal hypan- 
thium with a marginal flange giving a sunken or inverted salver- 
form effect (as in the base of the calyx of some species of Physalis 
in fruit); lobes ovate, acute, about 3 mm. long, fully twice as long 
