Cruciferae 



485 



tliickened at apex; stems 30-50 cm. long, several-leaved; leaves 

 petiolate, the radical and lower cauline long-petiolate, the leaf- 

 lets 5-7, nearly equal, ovate-oblong to oblong, 3-5 cm. long, 1-3 

 cm. wide, obtuse, short-puberulent above, incised and obtusely 

 toothed, the petioles of the cauline leaves slightly auriculate; 

 racemes solitary or few, about lO-flowered, the pedicels 1-2 

 cm. long; petals about 8 mm. long, white, cuneate-obovate; si- 

 liques 2-3 cm. long, 1.5-1.8 mm. wide, gradually narrowed 



above; seeds about 2 mm. long, wingless. May-July. Wet 



places along streams and ravines in mountains; Honshu (centr. 

 and n. distr.). 

 17. Cardamine leucantha (Tausch) O. E. Schulz. 



Dentaria leucantha Tausch; C. dasyloba (Turcz.) Komar.; 

 D. dasyloba Turcz.; D. macrophylla var. dasyloba (Turcz.) 



Makino Konron-s6. Rhizomatous; stems 40-60 cm. 



long, erect, short-pubescent; cauline leaves few, petiolate, 

 short-pubescent beneath, the leaflets 5-7, thinly membranous, 

 broadly lanceolate to ovate-oblong, 4-8 cm. long, l-2.5(-3) 

 cm. wide, acuminate, toothed; racemes many-flowered, elon- 

 gate after anthesis, short-pubescent; sepals usually pilose; 

 petals 8-10 mm. long; siliques slightly pilose while young, 



long-pedicelled. Apr.-June. M^et places along streams and 



ponds in mountains; Hokkaido, Honshu, Shikoku, Kyushu. 

 Korea, Manchuria, n. China, and e. Siberia. 



7. WASABIA Matsum. 



Wasabi Zoku 



Glabrous perennial herbs; radical leaves long-petiolate, simple, cordate-orbicular, undulate-toothed; stems leafy, simple; flowers 

 bracteate, in racemes, white; sepals ascending; petals clawed, obovate; siliques linear-oblong, rather short, torulose, cylindric, the 

 valves membranous, without a midrib, the septum perfect; style rather elongate, the stigma simple; seeds few in 1 series, rather 

 large, plump; cotyledons incumbent. Two species, in Japan. 



Rhizomes stout, 1-2 cm. across; style about 2 mm. long; petals 8-9 mm. long; leaves to 15 cm. across 



Rhizomes short and narrow, 1-2 mm. across; style 0.5-0.7 mm. long; petals 5-7 mm. long; leaves to 5 cm. across. 



lA. 

 IB. 



1. Wasabia japonica (Miq.) Matstun. (?) Cochlearia 

 wasabi Sieb.; Etitrema wasabi (Sieb.) Maxim.; Alliaria wasabi 

 (Sieb.) Prand; W. wasabi (Sieb.) Makino; W. pungens Mat- 

 sum.; (?) Lunaria japonica Miq.; E. japonica (Miq.) Koidz.; 



(?) E. o\inosimensis Takenouchi Wasabi. Rliizomes 



creeping, stout; stems ascending, 20-40 cm. long, several- 

 leaved; radical leaves long-petiolate, cordate-reniform, 8-15 cm. 

 long and as wide, rounded at apex, undulate-toothed, the peti- 

 oles dilated at base; cauline leaves petiolate, broadly ovate, 2-4 

 cm. long, shallowly cordate; inflorescence simple, solitary, 

 many-flowered, the bracts similar to the cauline leaves but 

 small, the pedicels slender, 1-3 (-5) cm. long; sepals and sta- 

 mens about 4 mm. long; petals cuneate-obovate; siliques on 



stipes 3-5 mm. long; style slender. Mar.-May. Wet places 



along streams in mountains and often cultivated in such places 

 for the pungent rhizomes; Honshu, Shikoku, Kyushu. Sa- 

 khalin. 



1. W. japonica 

 . . 2.W. tenuis 



2. Wasabia tenuis (Miq.) Matsum. Nasturtium tenue 

 Miq.; Cardamine tenuis (Miq.) Koidz.; C. bracteata S. Moore; 

 Eutrema bracteata (S. Moore) Koidz.; W. bracteata (S. 

 Moore) Hisauchi; E. hederaejolia Fr. & Sav.; W. hederaejolia 



(Fr. & Sav.) Matsum. Yuri-wasabi. Slender glabrous 



perennial herb with narrow short rhizomes and slender fibrous 

 roots; stems ascending, 10-30 cm. long, few-leaved; radical 

 leaves long-petiolate, reniform-orbicular, cordate, 2-5 cm. long 

 and as wide, undulate-toothed, mucronate, the nerves palmate; 

 cauline leaves petiolate, ovate, cordate, 1-2.5 cm. long, 0.8-2.5 

 cm. wide; flowers in loose racemes, few, the bracts similar to 

 the cauline leaves but small, the pedicels 5-15 (-40) mm. long, 

 slender, spreading to deflexed; siliques nodding, broadly lin- 

 ear, torulose, 8-12 mm. long, about 2 mm. across, sessile or 

 nearly so; seeds 4-8, in 1 series, 2-2.5 mm. long, obsoletely 

 punctulate. Apr.-May. Streams in mountain woods; Hon- 

 shu, Shikoku, Kyushu. 



8. NASTURTIUM R. Br. Oranda-garashi Zoku 



Perennial herbs of wet places; leaves pinnate; racemes elongate, many-flowered, without bracts; flowers white; siliques linear; 

 style stout, short; valves membranous, nerveless; seeds in 2 series, many, small; cotyledons accumbent. A single species. 



1. Nasturtium officinale R. Br. 2V. nasturtium-aquati- 3-7 (-9), ovate or broadly so, undulately few toothed, the 



cum (L.) Karst.; Sisymbrium nasturtium-aquaticum L.; Ro- terminal leaflet larger than the lateral, 2-3 cm. long, 15-25 



rippa nasturtium-aquaticum (L.) Schinz & Thell.; Radicula mm. wide; racemes rather elongate, the pedicels often deflexed; 



nasturtium-aquaticum (L.) Britten & Rendle Oranda- siliques 1-2 cm. long, 1.5-2 mm. wide, with a short, stout 



garashi. Glabrous perennial rhizomatous herb; stems 30- style; seeds in 2 series. Widely naturalized in our area, 



40 cm. long, rather stout; leaves petiolate, pinnate, the leaflets growing in water or in very wet places; common. Eurasia. 



9. COCHLEARIA L. 



ToMosHiRi-s6 Zoku 



Glabrous annuals or perennials; leaves alternate, sometimes rosulate, entire or pinnately parted; flowers white, rarely purple 

 or yellow, ebracteate, in racemes or rarely solitary on naked scapes; petals shortly clawed; stamens straight or geniculate; silicles 

 sometimes short-stiped, oblong or globose, the valves usually ventricose, loosely reticulate or veiny; style short or elongate, the 



stigma simple or capitellate; seeds many to few, usually in 2 series, small; cotyledons accumbent or rarely incumbent. About 



25 species, in the temperate and far northern regions of die N. Hemisphere, especially along the sea and in high mountains. 



1. Cochlearia oblongifolia DC. C. officinalis subsp. 

 oblongijolia (DC.) Hult. Tomoshiri-s6. Lustrous gla- 



brous biennial; stems 10-20 cm. long, branched at base, few- 



leaved; leaves rather thick, the radical rosulate, rather many, 

 usually withering before anthesis, the lower cauline petiolate, 

 the upper leaves sessile, ovate or oblong, 1-2.5 cm. long, 8-15 



