54 CRUCIFERAE 



Locs. — Silver Caiion nonr Big Prospector Mdw., Wliitc Mts., Jcpson 73r)4; North Fork 

 Crooked Creek, White Mts., Jcpsnn 7344; Mt. Bidwell, Jcpson 7902. 



Kefs.— Kadicula siN'UATA Greene, Lflts. 1:113 (1905); Jepson, Man. 424 (1925); Britt. 

 &Br. III. Fl.cd. 2, 2:160, fig. 2027 (1913). Xaxturtium sinnaiiim 'Nutt.; T. &G. Fl. 1:73 (1838), 

 type loc. banks of the Columbia River, Nnttall; B. & W. Bot. Cal. 1:43 (187G) ; Gray, Syn. Fl. 

 l':147 (1895). Eoripa sinuata Hitchcock, Spring Fl. Manhat. 18 (1894). lioripa tencrrima 

 Greene, Erythea 3:4(3 (1895), type loc. Modoc Co., 11. M. Austin, liadicula tcnerrima Greene, 

 Lflts. 1:113 (1905). Var. trun'cata Jepson, Man. 424 (1925), type loc. Crystal Lake, San Ga- 

 briel Mts., Peir.son 2450. Var. Integra Jepson, Man. 425 (1925), type loc. Silver Canon, White 

 Mts., Jepson 7354. 



Radicula A0STRIACA Jepson comb. n. Nasturtium austriacum Crantz, Stirp. Austr. ed. 1 : 15 

 (1762), type from Austria. Roripa austriaca Spach, Hist. Veg. Phan. 6:513 (1838) ; Hegi, Fl. 

 Mit.-Eur. 4':309, fig. 803. Stems slender, erect, V/2 to 2 feet high, microscopically pubcrulent; 

 blades of the leaves oblong to oblong-obovate, unequally serrate, narrowed below to a l)road 

 petiole-like auriculate base, 1^4 to 2^/^ inches long, glabrous; racemes 3 to 5 inches long, panicu- 

 late at summit; petals yellow, 2 lines long; pedicels soon spreading, 2 to 5 lines long; pods sub- 

 globose, y^ to IV2 lines long. — European weed, introduced into cultivated fields in Modoc Co.: 

 Corporation ranch, south of Alturas, ace. M. K. Belluc (Mo. Bull. Cal. Dept. Agr. 22:385), 

 reported in 1933. In general habit it recalls some Sisymbrium species. 



13. CARDAMINE L. Bitter Cress 



Ours erect herbs with leafy stems. Leaves simple or pinnate, the basal in a 

 rosette. Flowers white or pinkish. Very near Dentaria and scarcely separable, 

 but the flowers smaller (in ours 1 to 4 lines long) and pods narrower. — About 125 

 species, temperate regions of both hemispheres and extending into the arctic zone. 

 (Ancient Greek name of some species of cress.) 



Leaves simple, undivided ; petals 2 to 3 lines long ; perennials ; ne. Cal. 



Stems many from an ascending mueh-branched caudex; flowers white or pinkish; dwarf 



plants 1. C. bellidifolia. 



Stem simple or branched above, from a running rootstock ; flowers white ; plants 1 to 2 feet 



high 2. C.lyallii. 



Leaves, at least the cauline, with 3 to many pinnate leaflets ; flowers white. 



Some basal leaves simple; cauline 3 to 5-foliolate; petals 2l^ lines long; perennial; mostly 



montane 3. C. hreweri. 



Basal leaves pinnate. 



Flowers rather large; petals 2^/^ to 3 lines long; perennial. 



Leaflets 1 or 2 pairs, angulately lobed; plants abundantly stolonif erous ; Humboldt 



Co 4. C. angulata. 



Leaflets 4 to 6 pairs, not lobed; plants not stolonif erous; coastal S. Cal 



5. C. gambelii. 

 Flowers smaller ; petals 1 to 2 lines long ; annuals or biennials. 



Leaflets mostly roundish ; capsules V2 to % line wide, about 8 to 18-seeded 



6. C. oligosperma. 



Leaflets mostly oblong or linear; capsules % line wide, about 20 to 30-seedod 



7. C. pennsylvanica. 



1. C. bellidifolia L. Alpine Cress. Scape-like peduncles and leaves eaespi- 

 tose on the branched root-crown, the plants 2 to 6 inches high; herbage glabrous; 

 leaf -blades ovate or elliptic, 3 to 9 lines long, on slender petioles 2 to 3 times as 

 long; flowers few; pods erect, 10 to 15 lines long. 



High peaks of northern California, 7000 to 8000 feet : Lassen Peak; Mt. Shasta; 

 Medicine Lake. North to xilaska, east to New England. Europe, Asia. June. 



Locs. — ^Lassen Peak, B. M. Austin; Mt. Shasta (Syn. Fl. 1^:155) ; Medicine Lake, M. S. 

 Baker 508. 



Refs. — Cabdamine bellidifolia L. Sp. PI. 654 (1753), type European; Jepson, Man. 425 

 (1928). C. bellidifolia var. pachyphylla Cov. N. Am. Fauna 16^:146 (1899), type loc. Mt. Shasta, 

 Merriam. 



2. C. lyallii Wats. Stem erect from a rootstock, simple or branched, 10 to 15 

 inches high; herbage glabrous; leaf -blades all simple, 6 to 8, reniform to cordate, 



