APPENDIX. IO75 



long, the upper shorter; flowers blue; sepals and spur about equal in 

 length, puberulent; spur straight, nearly 2 cm. long; sepals narrowly 

 ovate; bractlets borne somewhat below the calyx; lower petal yellow- 

 bearded; follicles 3, erect, slightly pubescent. In barrens, Mo. May- 

 June. 



P. 431. after Thalictrum dioicum, insert: 



3a. Thalictrum occidental A. Gray. Western Meadow-rue. Root- 

 stock slender. Stem glabrous, 1 m. high, or less, bearing 3-6 leaves; 

 leaves glaucous beneath and sometimes minutely glandular, the upper 

 short-petioled; leaflets thin, reniform to obovate, their lobes few, rounded; 

 flowers dioecious or polygamo-dioecious, in panicles 1.5-3 dm. high; 

 achenes 6-7 mm. long, 2-3 mm. wide, flattened, 2-edged, strongly 3-ribbed 

 on each side, the ribs somewhat branching; persistent style filiform, half 

 as long as the achene, or more; filaments yellowish-green to purplish, 

 slightly clavate. Me., New Brunswick, and northern N. Y; Manitoba 

 and Mont, to the Pacific Coast. May-July. 



P. 431, after Thalictrum coriaceum, insert: 

 4a. Thalictrum caulophylloides Small. Cohosh-like Meadow-rue. 

 Tall, dicecious, 1.5 m. high or less, glabrous; stems slender, somewhat 

 glaucous. Leaves 3-4-ternate; leaflets deep green above, orbicular or 

 often broader than long, pale beneath and strongly veined, 4-9 cm. 

 broad, 3-5-lobed, the lobes blunt or apiculate; panicle large; pedicels 

 filiform but stiff, 8-25 mm. long; achenes oblong, 4-6 mm. long, stalked, 

 sharply ridged; filaments nearly filiform; sepals of the staminate flowers 

 4.5-5.5 mm. long. Slopes and river-banks, Md. to Va., Ky., and Tenn. 

 May. 



P. 442, after Capnoides montanum, insert: 



5a. Capnoides campe*stre Britton, n. sp. Prairie Corydalis. 

 (I. F. f. 1678, as C. curvisiliquum.) Slender, pale green or somewhat 

 glaucous, 3 dm. high or less. Leaves very finely dissected; flowers 

 narrowly racemose, the pedicels 2-3 mm. long; bracts ovate to lanceolate, 

 longer than the pedicels; corolla yellow, 13-16 mm. long, the nearly 

 straight blunt spur 4-5 mm. long; pods 2 cm. long or less, about 2 mm. 

 broad, torulose when ripe, and ascending or upcurved; seeds shining, 

 reticulated, sharp-margined. In fields and woods, 111. to Nebr., Ark. 

 and Texas. April-May. Type from Benton Co., Ark. 



P. 446, after Lepidium ape"talum, insert: 



5a. Lepidium ramosissimum A. Nelson. Much-branched Pepper- 

 grass. Biennial, branched from the base upward, finely puberulent. 

 Basal leaves oblanceolate, 2-4 cm. long, coarsely toothed, the petiole 

 about as long as the blade; lower stem-leaves oblanceolate, few-toothed 

 on the margin, 3-toothed at the apex, the upper ones linear, entire; 

 racemes very numerous, dense, mostly short; sepals 1 mm. long; petals 

 white, spatulate, about 0.5 mm. long; pods broadly ovate to oval, 3 m. 

 long, notched; fruiting pedicels about 3 mm. long; cotyledons incum- 

 bent Dry soil, along railroad, Kearney, Nebr., Wyo. and Colo. 

 June-Aug. 



P. 456, after Dentaria laciniata, insert: 



1 a. Dentaria furcata Small. Narrow-leaved Tooth-wort. Dif- 

 fers from D. laciniata, of which it may be a form, by its narrowly linear 

 leaf-segments, which vary from entire to coarsely toothed. In moist 

 woods, Ohio to Iowa, Ark., Tenn. and Ala. March-May. Specimens 

 from the Eastern and Middle States resemble this very closely. 



