858 



CORYDALIS 



CORYLOPSIS 



35:306. Useful for the Alpine garden and more pro- 

 fuse bloomer than C. tomentosa, its nearest relative. 

 China. 



DD. The fls. not over %in. long. 



7. eheilanthifdlia, Hemsl. A small low perennial 

 with radical, fern-like, much-dissected, erect Ivs. about 

 8 in. long: scape usually taller than the Ivs., bearing 

 numerous fls. not over 3^in. long, yellow. China. 

 May. Suitable for moist places in the alpine garden. 

 Probably unknown in U. S. as it is a rare plant in nature. 



cc. Plant annual or biennial: root fibrous: st.-lvs. 



numerous. 

 D. Height of plants 2 ft. or more. 



8. ophiocarpa, Hook. f. & Thorns. Root fibrous, the 

 st. 2-3 ft. and branched: Ivs. pinnatisect, 4-8 in. long, 

 and glaucous beneath: fls. yellow, in many-fld., lax 

 racemes which are opposite the Ivs.; sepals orbicular, 

 finely toothed and fimbriate. Moist valleys of the 

 Himalayas. 



DD. Height of plants usually less than 1 ft. 

 E. Raceme spike-like; fls. almost sessile. 



9. curvisfliqua, Engelm. Probably a biennial: com- 

 monly more robust than C. aurea, ascending or erect, 

 1 ft. high or less: fls. golden yellow, over }^in. long, in 

 a spike-like raceme; spur as long as the body, com- 

 monly ascending: caps, quadrangular, 1J^ in. long; 

 seeds turgid to lens-shaped, with acute margins densely 

 and minutely netted. Woods in Texas. 



EE. Raceme not spike-like; fls. pedicillate. 



10. aurea, Willd. Annual, 6 in. high, commonly low 

 and spreading: fls. golden yellow, about Yiv&. long, on 

 rather slender pedicels in a short raceme; spur barely 

 half the length of the body, somewhat decurved: caps, 

 spreading or pendulous, about 1 in. long; seeds 10-12, 

 turgid, obtuse at margin, the shining surface obscurely 

 netted. Rocky banks of Lower Canada and N. New 

 England, northwest to latitude 64, west to Brit. Col. 

 and Ore., south to Texas, Ariz, and Mex.; not Japan. 

 The western forms have the spur almost as long as the 

 body of the corolla and pass into 



Var. occidentalis, Engelm. More erect and tufted, 

 from a stouter and sometimes more enduring root: fls. 

 larger; spur commonly ascending: caps, thicker; seeds 

 less turgid, acutish at margins. Colo., New Mex., W. 

 Texas, Ariz. 



11. l&tea, DC. Erect or spreading, 6-8 in. high, 

 annual, or forming a tufted stock of several years' 

 duration: Ivs. delicate, pale green, much divided; 

 segms. ovate or wedge-shaped, and 2-3-lobed: fls. pale 

 yellow, about J^in. long, in short racemes; spur short: 

 pod y or Yi\T\. long. Stony places of S. Eu., and runs 

 wild in Eu. 



BB. Foliage tomentose. 



12. tomentdsa, N. E. Br. A low rock-loving peren- 

 nial, with a rosette of radical Ivs. 4-7 in. long, oblong 

 in outline and tomentose, the tomentum whitish pink, 

 pinnae finely dissected: racemes erect, 5-7 in. tall; 

 corolla about %in. long, light canary-yellow, the spur 

 very blunt and about J^in. long. China. A good plant 

 for the rock-garden. 



C. angustifdlia, DC., is a little-known perennial with bi-ternately 

 divided Ivs. and flesh-colored fls.=Fumaria angustifolia, Bieb. 

 G.C. III. 35 : 307. C. cava, Schweigg. & Kort. (probably a form of C. 

 tuberosa, DC.) is somewhat larger than C. bulbosa, with pretty 

 fls. varying into purplish and white. Eu. C. ochroleuca. Koch. 

 One ft. high, blooming June-Sept. : fls. yellow-white, the spur yel- 

 low: caps, linear: petiole winged. Italy. C. Scouleri, Hook., grows 

 3 ft., and is cult, in some European gardens. W. Amer. 



N. TAYLOR.t 



CORYLOPSIS (Corylus and apsis, likeness; in foliage 

 resembling the hazel). Hamamelidaceae. Woody plants, 

 grown chiefly for their yellow fragrant flowers appear- 

 ing in early spring and for the handsome foliage. 



Deciduous shrubs, rarely trees: Ivs. alternate, 

 strongly veined, dentate: fls. in nodding racemes with 

 large bracts at the base, appearing before the Ivs., yel- 

 low; calyx-lobes short; petals clawed, 5; stamens 5, 

 alternating with entire or 2-3-parted short staminodes; 

 styles 2; ovary half -superior, rarely entirely superior: 

 fr. a 2-celled, dehiscent, 2-beaked caps., with 2 shining 

 black seeds. About 12 species in E. Asia and Hima- 

 layas. 



These are low ornamental shrubs, with slender 

 branches and pale bluish green distinct foliage; all are 

 very attractive in early spring, when covered with 

 numerous nodding spikes of yellow, fragrant flowers. 

 Not hardy north of New York, except in sheltered 

 positions. They grow best in peaty and sandy soil. 

 Propagated by seeds sown in spring, best with slight 

 bottom heat, and by cuttings of half-ripened wood in 

 summer under glass; also by layers, rooting readily in 

 moderately moist, peaty soil. 



A. Fls. in many-fld. racemes. 



B. Petals obovate to oblong-obovate. 



c. Young branchlets and Ivs. beneath pubescent, at least 



on the veins. 



spicata, Sieb. & Zucc. Shrub, to 4 ft. : Ivs. oblique and 

 rounded or cordate at the base, roundish ovate or obo- 

 vate, sinuate-dentate, glaucous beneath and pubescent, 

 2-3 in. long: racemes 7-10-fld., 1-2 in. long, their 

 bracts ovate; fls. bright yellow; stamens slightly longer 

 than the obovate petals; calyx hairy. Japan. S.Z. 19. 

 B.M. 5458. F.S. 20:2135. R.H. 1869, p. 230; 1878, 

 p. 198; 1907, p. 403. G.C. II. 15:510; III. 25:210. 

 Gn. 33, p. 441. S.I.F. 2:26. This species has larger 

 and handsomer foliage and fls. of a deeper yellow, in 

 longer racemes, but C. pauciflora flowers more profusely 

 and is somewhat hardier. 



sinensis, Hemsl. Shrub, 6-15 ft.: Ivs. obovate to 

 oblong-obovate, abruptly acuminate, obliquely sub- 

 cordate or cordate at the base, sinuate-denticulate, 

 pubescent at least on the veins and grayish green 

 beneath, 2-4 in. long: racemes about 2 in. long, their 

 bracts nearly orbicular; petals orbicular-obovate, 

 slightly longer than style and stamens; calyx hairy. 

 Cent. China. G.C. III. 39:18. Var. glandulifera, 

 Rehd. & Wilson (C. glandulifera, Hemsl.). Young 

 branchlets and petioles with scattered glandular bris- 

 tles: calyx glabrous. H.I. 29:2819. 



cc. Young branchlets glabrous; Ivs. glabrous or only with 

 a few silky hairs on the veins beneath when young. 



Veitchiana, Bean. Shrub, 3-6 ft. : Ivs. short-petioled, 

 elliptic, abruptly acuminate, subcordate at the base, 

 sinuate-denticulate, glaucous beneath, 3-4 in. long: 

 racemes 1-2 in. long; petals obovate, slightly shorter 

 than the stamens; calyx hairy; nectaries 2-parted. 

 Cent. China. B.M. 8349. Gn. 76, p. 184. 



BB. Petals with the blade as broad as or broader than long. 



WOlmottiae, Rehd. & Wilson. Shrub, to 12 ft.: lys. 

 oval to obovate, cordate or truncate at the base, sin- 

 uate-denticulate, glaucescent beneath, 1-3^ in. long: 

 racemes 2-3 in. long; petals suborbicular; calyx gla- 

 brous; nectaries 2-parted, slightly shorter than the 

 sepals. Cent. China. G.M. 55:191 (as C. multiflora). 



platypetala, Rehd. & Wilson. Shrub, 3-8 ft. : young 

 branchlets with scattered glandular bristles: Ivs. on 

 glandular petioles, ovate or broadly ovate, cordate or 

 subcordate at base, sinuate-denticulate, on both sides 

 sparingly silky-hairy when young, soon glabrous 2-4 

 in. long: racemes 1-2 in. long; petals hatchet-shaped, 

 Kin. broad; nectaries emarginate at the apex; stamens 

 and styles much shorter than petals; calyx glabrous. 

 Cent. China. Var. levis, Rehd. & Wilson. Branchlets 

 and petioles without any glands. W. China. Less 

 showy than most other species. 



