290 BRASSICACEAE 



about equaled by the petiole ; stem leaves 10-25 mm. long, oblanceolate, entire or repand ; fruit- 

 ing racemes elongated; pedicels conspicuously sigmoid, 6-15 mm. long; pods 4-6 mm. long, 

 obovoid, somewhat compressed parallel with the partition, densely stellate. 



White clay soils Upper Sonoran Zone; eastern Oregon, Gilliam County to Malheur County. Type locality: 

 white clay soils, Willow Creek, Malheur County, Oregon. May-June. 



35. PHOENICAULIS Nutt. in Torr. & Gray, Fl. N. Amer. 1 : 89. 1838. 



Acaulescent perennial herbs, with a branched, leafy caudex, the flowers borne on 

 short scapose stems. Sepals oblong, erect, the lateral gibbous at base. Petals purple or 

 pink, with long claws and broad blades. Anthers included, sagittate at base. Pods flat- 

 tened parallel with the partition, the valves 1 -nerved; stigma entire; seeds margmless, 

 cotyledons obliquely accumbent. [Name Greek, meaning purple stem. Thought by some 

 to be a misprint for Phacnocaidis, meaning a flower stem.] 



Two species native of western North America. Type species, Phoenicaulis cheiranthoides Nutt. 



Pods linear-lanceolate; racemes 10-15 cm. long. 1- P- cheiranthoides. 



Pods ovate-lanceolate; racemes 2-3 cm. long. 2 - p - eurycarpa. 



1. Phoenicaulis cheiranthoides Nutt. Common Phoenicaulis. Fig. 2058. 



Phoenicaulis cheiranthoides Nutt. in Torr. & Gray, Fl. N. Amer. 1 : 89. 1838. 



Hesperis Menziesii Hook. Bot. Beechey 322. pi. 75, as to description and plate, but not synonymic type. 1838. 



Phoenicaulis Menziesii Steudel, Nom. ed. 2. 2: 323, in part, not as to synonymic type. 1841. 



Phoaenicaulis Menziesii Greene, Bull. Torrey Club 13: 143, in part. 1886. Not Hesperis Menziesii Hook. 



1830. 

 Parrya Menziesii Greene, Fl. Fran. 253, in part, not as to synonymic type. 1891. 



Caudex stout, the branches few, covered with the remains of dead leaves, the scapose flower- 

 ing stems 6-15 cm. long, nearly glabrous. Leaves 2.5-10 cm. long, spatulate to oblanceolate, 

 acute or obtuse, entire, densely tomentose on both sides with fine stellate pubescence, the petioles 

 often nearly glabrous; raceme many- flowered ; petals about 8 mm. long; pedicels 10-15 mm. long, 

 divaricate; pods 2-4 cm. long, horizontal, narrowed from near the base to the slender style, 

 glabrous, 2-4-seeded. 



Rocky soils, Boreal and Transition Zones; eastern Washington and Idaho to western Nevada, the Sierra 

 Nevada and North Coast Ranges, California. Type locality: "high hills to the east of Wallawallah River, and 

 on rocks on the upper part of the Oregon." April-June. 



Phoenicaulis cheiranthoides subsp. lanuginosa (S. Wats.) Abrams (Parrya Menziesii var lanuginosa 

 S Wats in A. Gray, Syn. Fl. N. Amer. I 1 : 152. 1895.) Distinguished from the typical species by the more 

 loose and woolly pubescence. Eastern Oregon to northwestern Nevada and the northern Sierra Nevada, Cali- 

 fornia. 



Phoenicaulis cheiranthoides subsp. glabra (Jepson) Abrams. (Parrya Menziesii var glabra Jepson, 

 Man. Fl. PI. Calif. 434. 1925.) This subspecies is distinguished by the entirely glabrous herbage. Lake Uty 

 Mountain, Modoc County, California. 



2. Phoenicaulis eurycarpa (A. Gray) Abrams. Broad-podded Phoenicaulis. 



Fig. 2059. 



Draba eurycarpa A. Gray, Proc. Amer. Acad. 6: 520. 1865. 

 Anelsonia eurycarpa Macbr. & Payson, Bot. Gaz. 64: 81. 1917. 

 Parrya Huddelliana A. Nels. Bot. Gaz. 54: 139. 1912. 

 Parrya eurycarpa Jepson, Man. Fl. PI. Calif. 434. 1925. 



Densely cespitose, branches of the caudex short. Leaves numerous, oblanceolate, 10-15 mm. 

 long, densely stellate ; scape scarcely exceeding the leaves, pubescent ; petals yellow ; pod oblong- 

 ovoid, acute, glabrous, style 2 mm. long. 



Alpine slopes, Boreal Zones; Idaho to Nevada and the Sierra Nevada, California. Type locality: "Near 

 summit of peak south of Sonora Pass, California, at 11,500 feet altitude." June- Aug. 



36. HUTCHINSIA R. Br. in Ait. Hort. Kew. ed. 2. 4 : 82. 1812. 



Low mostly diffuse annual or perennial herbs, more or less pubescent with forked 

 hairs. Leaves entire or pinnately lobed. Flowers white, minute, in terminal racemes. 

 Stamens 6. Style none or very short. Silicles oval, compressed at right angles to the 

 septum, the valves strongly 1-nerved. Seeds numerous in each cell; cotyledons incumbent 

 or accumbent. [Name in honor of Miss Hutchins, of Bantry, Ireland, a prominent bota- 

 nist.] 



A genus of about 8 species, natives of the northern hemisphere, only the following in North America. Type 

 species, Hutchinsia petraea (Willd.) R. Br. 



1. Hutchinsia procumbens (L.) Desv. Prostrate Hutchinsia. Fig. 2060. 



Lepidium procumbens L. Sp. PI. 643. 1753. 



Hutchinsia procumbens Desv. Journ. Bot. 3: 168. 1814. 



Hymenolobus divaricatus Nutt. in Torr. & Gray, Fl. N. Amer. 1: 117. 1838. 



Capsella elliptica C. A. Meyer ex Ledeb. Fl. Alt. 3: 199. 1831. 



Stems branching from the base, slender, ascending or procumbent, 5-20 cm. long. Lower 



