482 Cruciferae 



1 A. Rhizomes scarcely thickened ; scapes or stems leafy. 

 2A. Stolons if present short; sparsely pubescent biennials or perennials; flowers 2.5-6(-7) mm. long. 



3A. Cauline leaves 10-20, usually distinctly auriculate; petals oblanceolate or absent 1. C. impatiens 



3B. Cauline leaves few, not or scarcely auricled; petals cuneate-obovate to obovate. 

 4A. Rhizomes scarcely developed or branched; leaflets 3-20 mm. long. 



5 A. Siliques and pedicels pilose; terminal leaflets or radical leaves reniform or cordate; petals about 5 mm. long. 



6A. Stems 7-20 cm. long; racemes few-flowered, not elongate 2. C. tana\ae 



6B. Stems 20-40 cm. long; racemes rather many-flowered, elongate after anthesis 3. C. dentipetala 



5B. Siliques and pedicels glabrous; petals 3—4 mm. long. 



7A. Siliques 17-22 mm. long, about 1 mm. wide, the stigma only slightly thickened. 



8A. Leaflets of radical leaves 7-17, the terminal one slightly larger than the others; leaflets of upper leaves usually linear 



to narrowly oblanceolate 4. C flexuosa 



8B. Leaflets of radical leaves (3-)5-ll, the terminal one much larger than the others; leaflets of upper leaves oblanceolate to 



oblong 5. C. scutata 



7B. Siliques 25-30 mm. long, 1.2-1.5 mm. wide, the stigma distinctly thickened 6. C. hngifructus 



4B. Rhizomes much branched; leaflets not more than 10 mm. long; alpine plant with stems 5-10 cm. long 7. C. nipponica 



2B. Stolons elongate after anthesis, leafy; glabrous perennials; flowers 6-10 mm. long. 



9A. Stems erect from the base, sometimes decumbent after anthesis; plants stoloniferous; rhizomes not prominent 8. C. lyrata 



9B. Stems usually ascending from the creeping rhizomes; stolons elongate after anthesis. 

 lOA. Leaflets 5-11. 



11 A. Leaflets of cauline leaves sessile. 



12A. Leaflets of upper leaves linear, acute 9. C. schinziana 



12B. Leaflets elliptic to lanceolate, usually obtuse. 



13A. Siliques gradually narrowed above to the stigma 10. C. yezoensis 



13B. Siliques abruptly and shortly narrowed above to the stigma 11. C torrentis 



1 IB. Leaflets of cauline leaves petiolulate 12. C. kiusiana 



lOB. Leaflets 3(-5) 13. C. fauriei 



IB. Rhizomes more or less thickened. 



14A. Plants short-rhizomatous; stems 10-20(-30) cm. long; leaves 3-foliolate or if 5-foliolate, the leaflets of the lowest pair very small; 

 racemes short, rather few-flowered. 

 15A. Radical leaves absent; leaflets of cauline leaves rhombic-lanceolate to linear-lanceolate; petals 8-10 mm. long. 



14. C. anemonoides 



15B. Radical leaves present; leaflets orbicular-reniform or ovate; petals 4-5 mm. long 15. C ara\iana 



14B. Plants stoloniferous; stems 30-70 cm. long; leaflets 5-7; racemes rather elongate. 



16A. Cauline leaves auriculate; leaflets obtuse or subobtuse, rather thick, 3-5 cm. long, short-pilose on upper side; racemes glabrous. 



1 6. C. appendiculata 



16B. Cauline leaves not auriculate; leaflets acuminate to long-acute, thin and membranous, 4-10 cm. long, puberulent beneath, scattered 



short-hairy above; racemes usually puberulent 17. C. leucantha 



1. Cardamine impatiens L. Ja-ninjin. Slender, Boiss. O-ke-tanetsuke-bana. Resembles No. 5, but 



sparsely short-pubescent annual or biennial; stems erect, often scattered-pilose on all parts; siliques pilose. June. Wet 



branched above; leaves pinnately divided, the radical petiolate, woods in mountains; Honshu (Japan Sea side of n. and centr. 



the cauline short-petiolate or sessile, usually auriculate, die pin- distr.) ; rather rare. 



nae 7-20, thinly membranous, pinnately lobed or deeply in- 4. Cardamine flexuosa With. C. scutata subsp. flexu- 



cised; racemes many-flowered, 10-15 cm. long, erect, the pedi- osa (With.) Hara Tanetsuke-bana. Annual or bien- 



cels 3-6 mm. long, slender; flowers greenish white; sepals nial herb; stems 10-30 cm. long, usually spreading-pilose on 



oblanceolate, slightly pilose; petals white, broadly oblanceo- lower part, sometimes branched above; lower leaves 7- to 17- 



late, 3-3.5 mm. long, 1.5-2 times as long as the sepals, some- foliolate, often very thinly pilose, the leaflets ovate to broadly 



times smaller or absent; siliques glabrous or scattered-pilose, so, petiolulate, sometimes 3- to 5-lobed, the terminal lobe 



Wet shaded places in hills and mountains; Hokkaido, slighriy larger, 3-15 mm. long, 6-15 mm. wide, the leaflets of 



Honshu, Shikoku, Kyushu; rather common. The temper- the upper leaves 3-11, lanceolate, sometimes denticulate or in- 



ate regions of Eurasia. cised, sessile or subsessile; racemes 10- to 20-flowered; flowers 



2. Cardamine tanakae Fr. & Sav. C. tenuis Koidz., white; petals cuneate-obovate, 3-4 mm. long; siliques glabrous, 



excl. basionym; C. chelidonioides S. Moore Maruba-no- about 2 cm. long, 1 mm. wide; seeds about 1 mm. wide. 



KONRON-s6. Biennial or perennial (?), usually rather densely Mar .-June. Wet places in lowlands and paddy fields; Hok- 



white-pilose; stems 7-20 cm. long; radical leaves petiolate, 1- kaido, Honshu, Shikoku, Kyushu; common. Temperate 



to 7-foliolate, the leaflets petiolulate, orbicular-cordate or ovate- regions of the N. Hemisphere. 



orbicular, coarsely toothed, rounded at apex, the terminal Var. fallax O. E. Schulz. C. fallax (O. E. Schulz) Nakai; 



leaflet 1-3 cm. long and as wide, the lateral leaflets smaller, C. brachycarpa Franch. ; C. parviftora sensu auct. Japon., non 



the cauline 1-5, petiolate, 3- to 7-foliolate, sometimes auricu- L.; C. \oshiensis Koidz. Tachi-tanetsuke-bana. More 



late; racemes rather few-flowered, densely white-pilose, the densely pubescent; stems slender and erect; growing in dryer 



pedicels 7-15 mm. long; petals cuneate-obovate, white, 5-7 places than the typical phase. 



mm. long; siliques ascending, 2-2.5 cm. long, 1-1.2 mm. wide, 5. Cardamine scutata Thunb. C. regeliana Miq.; C. 



scattered-pilose; stigma slightly thickened; seeds about 1.2 angulata var. \amtschatica Regel; C. flexuosa -var. I^amtschatica 



mm. long. Wet places; Honshu, Shikoku, Kyushu. (Kegel) Matsum.; C. autumnalis Koidz.; C. scutata subsp. 



3. Cardamine dentipetala Matsum. C. dra\eana H. regeliana (Miq.) Hara Oba-tanetsuke-bana. Resembles 



