PIPER FLORA OF THE STATE OF WASHINGTON. 299 



3. Thelypodium integrifolium (Nutt.) Endl.; Waip. Rep. 1: 172. 1842. 

 I'dchypoiliuiii intcgrifoliunt. Nutt.; Toit. & Gr. Fl. 1: 96. 1838. 



Type locality: "Elevated plains of the Rocky Mountains, towards the Oregon, as far 

 as Wallawallah." Collected by Nuttall. 



Range: Washington to California and Nebraska. 



Specimens examined: Yakima City, Piper, July, 1897; Coulee City, Lake d' Hull 473; 

 Satus, Elmer 1073; Squaw Creek, Cotton 87 Jf. 



Zonal distribution: Upper Sonoran. 



The "Thelypodium hrae}t\jcarp\iiii Toi-r.'^' of Suksdorf's list is l)ased on a specimen of 

 T. integrifoliy HI . 



4. Thelypodium laciniatum (Hook.) Endl.: Walp. Rep. 1: 172. 1842. 

 AI aero podium laciniatum Hook. V\. Ror. Am. 1: 43. 182!). 



Ty'pe LOCALITY': "Common on dry rocks about Wallawallah, and at Priest's Rapid on 

 the Columbia." Collected by Douglas. 



Range: Washington to California and Nevada. 



Specimens examined: Wenache, Whited 200, 124G; North Yakima, Piper; Pasco, 

 Piper 298G; Cascade Mountains, 49°, Lyall in 1860; Wallula, Leckenhy; Crab and Wilson 

 creeks, Sandberg & Leiberg 229; Rockland, Suksdoif 237; without locality, Vasey in 1889; 

 Rock Lake, Piper 2792; Walla Walla, Leckenhy; Douglas County, Spillman; Coulee City, 

 Piper 3863; Rattlesnake Mountains, Cotton 391; Whitman County, opposite Clarkston, 

 Hvnter 21; Ritzville, Sandberg d' Leiberg 190. 



Zonal distribution: Upper Sonoran. 



5. Thelypodium streptanthoides Leiberg, in herb. 



Stout erect from a biennial root, often branched from the base, 0..'i to 1 meter high, 

 glabrous throughout: leaves oblong-lanceolate, irregularly sinuate-toothed or pinnatifid 

 with oblong or even linear lobes, green on both sides, 4 to 10 cm. long, all petioled; racemes 

 dense, 30 to 60 cm. long; sepals becoming 6 to 8 mm. long, deep purple at least on the upper 

 third, somewhat irregular, the lower pair often united for two-thirds of their length, con- 

 spicuously saccate at base, becoming tubulose-convolute at apex; petals narrowly linear 

 with a dilated apex, flat, double the length of the sepals; filaments much elongated, nearly 

 equal, free; pods 10 to 12 cm. long, on stout divaricate pedicels 4 to 6 mm. in length, sub- 

 terete, flexuous or curved, minutely tomentose, strongly nerved; style short or none; 

 mature seeds not seen. 



Type specimen in the U. S. National Herbarium, collected near Wilson Creek, Douglas 

 County, altitude 680 meters, no. 229, Sandberg cfc Leiberg in 1893. Also collected on 

 rocky cliffs at Almota, Piper 1473 and 3.563; Lake Chelan, Elmer, July, 1897; and Soap 

 Lake, McKay 2. 



This species is closely allied to T. laciniatum (Hook.) Endl., but differs in its thiniier not 

 at all glaucous leaves and purple-tinged calyx. 



ERYSIMUM. 



Petals 4 to 5 mm. long; pods 1 to 2 cm. long 1. E. clieiranthoideti. 



Petals 16 to 24 nun. long. 



Pods 4-angled, spreading, ."j to 12 cm. long. 



Seeds quadrangular. 2. E. asperum. 



Seeds lenticular 3. E. elatuni. 



Pods flattened. 



Cespitose perennial; cotyledons incumbent 4. E. arenicola. 



Biennial, simple; cotyledons accumbent 5. E. occidentali.^. 



1. Erysim.um. cheiranthoides L. »Sp. PI. 2: 661. 1753. 

 Type locality: European. 



