DICENTKA 



ing must be very gentle and the plants kept as near the 

 glass as possible. It is best to have fresh plants each 

 year, and return the forced ones to the border. 



A. Fls. rose-purple. 



B. Bacemes simple. 



spectibilis, Hem. (DUlytra spectdbilis, G. Don). 

 Ma Heart. Fig. 703. Height 1-2 ft. : Ivs. and 

 Ifts. broadest of the 

 group: fls. largest, deep, 

 rosy red; corolla heart- 

 shaped ; inner petals 

 white, protruding. Late 

 spring. Jap. F.S. 3:258. 



B.M. 4458. R.H. 1847:461. Gn. 40:820.-The white-fld. 



variety has a weak growth and sickly appearance. 



BB. Sacenies compound. 



c. Itiner petals protruded. 



eximia, Terr. Fls. deep rose, heart-shaped, tapering 



to a neck, which is longer and narrower than in D. for- 



mosa, the tips of the outer petals much longer. Rocks 



of western N. Y. and Mts. of Va. Var. multipinnita, 



Hort.,has Ivs. still more finely cut. "The handsomest 



foliaged hardy plant in our entire collection."— J^. W. 



cc. Inner petals scarcely protruded. 

 Jormdsa, Walp. Fig. 704. Fls. pale rose, with a short, 

 thick neck, the tips of the outer petals shorter than in 

 D. eximia. According to Gray, Syn. Flora, the fls. are 

 cordate, but B.M. shows 2 pronounced spurs, with tips 

 pointing toward each other. Mn. 8:17. B.M. 1335 (as 

 Fumaria formosa). Calif, north. 



DICHORISANDRA 4/9 



creamy yellow; crest of the inner petals minute. Nova 

 Scotia to L. Huron, S. C. to Mo. I. H. 6:215. Mn. 6:41. 

 A.G. 13:516. D. 35. B.U.im (a.a Fumaria CueuUana). 

 W. M. 

 DICHORISANDHA (Greek words referring to the di- 

 vision of the stamens into two series). Commeli- 

 nAcea. About 28 species of tropical perennial herbs, 

 with handsome foliage, often beautifully variegated, 

 and rich blue fls. borne in thyrse-like panicles. Sepals 

 distinct, ovate or oblong, green or colored, about equal; 

 petals distinct, wider than the sepals; stamens 6. C. B. 

 Clarke in DC. Mon. Phan. 3:272 (1881). The following 

 are in the trade but not sufficiently described : D. 

 amoena, D. vnriegaia, D. Zanoni. ^_ m_ 



Dichorisandra tliyrsiflora is a sat- 

 isfactory plant of unusual and inter- 

 esting appearance, which requires lit- 

 tle attention when once well estab- 

 lished, and may be relied upon to 

 flower regularly year after year. It 

 needs careful repotting every year at 

 first until a good-sized pot (say 8 in.) 

 is well filled with roots. It then throws 

 up a strong shoot each year about 6 ft. 

 high, unbranched, and with'perhaps 8 

 or 9 Ivs. near the top. The handsome 

 thyrse of dark blue fls. gives a color 

 that is rare in the greenhouse. This 

 plant may be the only representative 

 of its Interesting order in a private collection. It is wil- 

 ling to be crowded into the background, where its bare 

 stem is hidden, and where the light may be poorest. 

 The stem dies down in the winter time, when water 

 should be gradually withdrawn. Water should be given 

 liberally during the growing season. Of the foliage 

 plants of this genus, D. mosatca is commonest. It is 

 dwarfer, and does not flower so regularly. 



Cult, by Robert Shore. 

 A. Foliage not variegated. 

 thyrsifldra, Mikan. Distinguished by its large Ivs., 

 which are lanceolate, narrowed into a distinct petiole, 

 glabrous, 6-10 in. long, 2 in. wide, green on both sides: 

 stem about 3 ft. high, scarcely branched, robust, gla- 

 brous: racemes subpanicled, pubescent: sepals glabrous, 

 blue or somewhat herbaceous. Braz. B.R. 8:682. L. B.C. 

 12:1196. P.M. 3:127. 



Flou 



ellou 



chrysAntlia, Walp. Pale and glaucous: inflorescence 

 thyrsoid-paniculate: fls. numerous, as many as 50 in a 

 thyrse, erect, golden yellow; corolla deciduous; outer 

 petals hardly larger than the inner, the tips soon recurv- 

 ing to below the middle. Dry hills, Calif. F.S. 8:820 (as 

 Capndrchis chrysdntha} . — Rare In cult. 



AAA. Flowers chiefly white. 



B. Corolla merely heart-shaped, the spurs being short 



and rounded. 



Canadensis, Walp. (Diilytra Canadensis, G. Don). 

 Squirrel Corn, from the scattered tubers resembling 

 grains of maize. Fig. 705. Lvs. flnely cut : raceme 

 simple, few-fld.: fls. white, tipped with rose; crest of 

 the inner petals conspicuous, projecting. Nova .Scotia 

 to Mich., south to Penn. and Ky., but chiefly northward 

 in the vegetable mold of rich woods. B.M. 3031. 



BB. Corolla not heart-shaped, the spurs longer and 

 divergent. 



Cucullaria, Bern. {Diilytra CucHllAria, G. Don). 

 Dutchman's Breeches. Fig. 706. Easily told from D. 

 Canadensis by its loose, granular cluster of tubers: lvs. 

 finely cut : racemes simple, few-fld. : fls. white, tipped 



706. Dicentra Cucullaria— Dutchman's Breeches (X%). 



AA. Foliage variegated. 

 mosMca, Linden (Z). hi iisdica, Koch & Lind.). Dis- 

 tinguished by its large, broadly elliptical lvs., which are 

 roundish at the base, sessile, glabrous, about 6 in. long, 



