Onagraceae 



657 



shu (Sado and Iwashiro Prov.) ; rare. The species is widely 



distributed in Eurasia and N. Africa. 



3. Epilobium montanum L. E. parvifionim var. men- 



thoidcs sensu auct. Japon., non Hausskn. Ezo-akab.'VNA. 



Rhizomes short, with sessile innovation shoots on the neck; 

 stems 15-60 cm. long, terete, without ridges, densely curved- 

 puberulent, especially on upper portion; leaves ovate or oblong- 

 ovate, the lower ones obtuse, the upper ones acute, rounded to 

 subcordate, very short-petioled, irregularly serrulate, thinly 

 puberulous; median leaves 2-5 cm. long, 10-23 mm. wide; 

 flowers 7-11 mm. long, pale rose, subobtuse at apex in bud, 

 the pedicels densely appressed white-puberulent and short 

 glandular-pilose; calyx 5-7.5 mm. long; stigma 4-fid; capsules 

 to 7 cm. long, curved-puberulent, the pedicels 8-15 mm. long; 

 seeds oblong, 1-1.3 mm. long, rounded at apex, obtuse at base, 

 densely papillose, the coma whiush.- — -July-Aug. Wet 

 places in mountains; Hokkaido, Honshu (centr. distr. and 



northw.). Siberia, Himalayas, Caucasus, Asia Minor, and 



Europe. 



4. Epilobium palustre L. var. lavandulaefoHum Lecoq 

 & Lamotte. £. dahttriciim sensu auct. Japon., non Fisch.; E. 

 lineare sensu auct. Japon., non Muhl. — ■ — Hosoba-akabana, 

 Yanagi-akabana. Plant with elongate rhizomes and sto- 

 lons; stolons with minute opposite scalelike leaves and a small 

 ellipsoidal winter-bud at the tip; stems erect, 10-40 (-60) cm. 

 long, usually without ridges, with minute curved puberulence 

 on upper portion; leaves linear to ovate-lanceolate, 2-6 cm. 

 long, 2-15 mm. wide, obtuse to subacute, narrowly cuncate or 

 obtuse at base, obscurely toothed, minutely curved-puberulent 

 on upper side and curved-puberulent on nerves beneath and 

 on margin, sessile or nearly so; flowers rose to white, 5-9 mm. 

 long, the pedicels short, densely curved-puberulent; ovary 

 densely white appressed-puberulent and with a few glandular 

 hairs; calyx 4-5 mm. long; petals 5-8 mm. long; stigmas cla- 

 vate, much shorter than the style; capsules 5.5-8 cm. long, 

 with curved puberulence especially on the angles, the pedicels 

 1-2.5 cm. long; seeds oblanceolate, 1.5-2.7 mm. long, obtuse, 

 narrowly cuneate at base, with small papillae on the surface, 



the coma nearly white. July-Aug. Wet places in lowlands; 



Hokkaido, Honshu (centr. distr. and northw.). The spe- 

 cies is widely distributed in Europe, Asia, and N. America. 



5. Epilobium fastigiatoramosum Nakai. E. palustre 

 var. mandjuricum Hausskn. Eda-uchi-akabana. Some- 

 times with elongate rhizomes and with stolons; stems much 

 branched or simple, 20-40 cm. long, without ridges, densely 

 leafy, with curved puberulence in upper portion; leaves nar- 

 rowly oblong to oblong-lanceolate, 1.5-4.5 cm. long, 3-10 mm. 

 wide, short-acute to obtuse, cuneate to subrounded at base, 

 broadest about the middle, subentire, sparsely puberulent on 

 upper side and on nerves beneath, the petioles less than 1 mm. 

 long; flowers 3.5-4.5 mm. long, the buds minutely mucronate; 

 ovary densely white-puberulent and with few glandular hairs; 

 calyx 2.5-3.5 mm. long; stigmas clavate, shorter than the style; 

 capsules 3-6 cm. long, the pedicels 5-15 mm. long; seeds nar- 

 rowly oblong, 1-1.5 mm. long, obtuse at both ends, densely 



papillose. Hokkaido; rare. Korea, Manchuria, China, 



Ussuri, Amur, and Dahuria. 



6. EpUobium fauriei Lev. E. \itadakense Koidz. 



HiME-AKABANA. Often gregarious; rhizomes slender, usu- 

 ally long-ascending, the terminal, ovoid, sessile, winter-bud 

 with fleshy scalelike leaves; stems nearly erect, slender, densely 

 leaf}', 3-20(-40) cm. long, without ridges, sometimes with 2 



series of minute hairs, curved white-puberulent especially on 

 upper portion; leaves linear, l-2.5(-3) cm. long, l-3(-5) mm. 

 wide, subobtuse, cuneatcly narrowed to the very short petiole, 

 1- or 2 (-4) -toothed on each side, often with axillary bulbils 

 resembling winter-buds in late autumn; flowers white to rose, 

 4-6(-8) mm. long, the pedicels and ovary white-appressed 

 curved-puberulent; calyx 3-4(-5) mm. long, the lobes mi- 

 nutely mucronate; stigmas clavate, much shorter than the 

 styles; capsules 2-3.5(-4.5) cm. long, the pedicels 1-3.5 cm. 

 long; seeds oblanceolate-oblong, 0.8-1.3 mm. long, abrupdy 

 narrowed at the tip, cuneate with a mucro at base, densely 



papillose, the coma whitish. July-Sept. Wet gravelly 



places in mountains; Hokkaido, Honshu (centr. distr. and 

 northw., and Mount Daisen in Hoki Prov.). Kuriles. 



7. Epilobium formosanum Masam. E. cephalostigma 



var. linearijoUum Hisauchi; E. sohayakjense Koidz. Todai- 



AKABANA, Saiyo-akabana. Often gregarious, bearing inno- 

 vation-shoots on the neck of the rhizomes; stems 20-35 cm. 

 long, rather stout, without ridges, densely leafy, with curved 

 puberulence; leaves linear to lanceolate, 1-3 (-4) cm. long, 

 1.5-5 mm. wide, subacute, cuneately narrowed at base, mi- 

 nutely toothed, the petioles 1-3 (—4) mm. long; flowers 3.5-5 

 mm. long, rose to white, distincdy mucronate at apex in bud, 

 the pedicels and ovary rather densely puberulent; calyx 3-4 

 mm. long, the lobes distincdy mucronate; stigmas thick-cla- 

 vate, much shorter than the styles; capsules 3-4 cm. long, the 

 pedicels 5-12(-18) mm. long; seeds oblong, 0.8 mm. long, 

 rounded at apex, obtuse at base, densely papillose, the coma 



white. High mountains; Honshu (s. Shinano and westw.), 



Shikoku. Formosa. 



8. Epilobium amurense Hausskn. E. origanifolium 

 var. pubescens Maxim.; E. gansuense Lev.; E. montanum 

 sensu auct. Japon., non L.; E. miyabei Lev.; E. shik^otanense 



Takeda; E. ovale Takeda Kegon-akabana. Rhizomes 



with innovation-shoots on the neck, the short stolons with 

 small scalelike leaves and an innovation-shoot at the tip; stems 

 6-40(-70) cm. long, densely rather long curved-puberulent 

 along die 2 ridges, otherwise glabrous; leaves lanceolate-ob- 

 long to ovate, 1.5-6.7 cm. long, 6-30 mm. wide in the median 

 ones, acute, narrowed to the very short petiole, irregularly 

 incurved-toothed, puberulent on nerves and on margin; flow- 

 ers usually rose, distinctly mucronate at apex in bud, glandular- 

 puberulent or curved-puberulent; calyx 3.5-6 mm. long; petals 

 4-7(-8) mm. long; stigmas capitate; capsules 2.5-5(-6.5) cm. 

 long, glabrous or sparingly puberulent, the pedicels 4-10(-22) 

 mm. long; seeds linear-oblong, 0.8-1.2 mm. long, rounded at 

 apex, slightly narrowed toward the obtuse base, densely and 



minutely papillose, the coma whitish. July-Aug. Streams 



in mountains; Hokkaido, Honshu, Shikoku. Sakhalin, Ku- 

 riles, Manchuria, Amur, and Formosa. 



9. Epilobium cephalostigma Hausskn. E. affine sensu 

 auct. Japon., non Bong.; E. calycinum Hausskn.; E. consimile 

 sensu auct. Japon., non Hausskn.; E. coreanum Lev.; E. con- 

 simile var. japonicum Nakai; E. sugaharae Koidz. Iwa-aka- 



BANA. Rhizomes short, with subscssile innovation-shoots on 

 the neck; stems 15-60 cm. long, minutely puberulent on upper 

 part and on branches, only on ridges in lower portion; leaves 

 lanceolate or oblong-lanceolate, sometimes ovate-lanceolate, 

 1.5-9 cm. long, 5-33 mm. wide in the median ones, acute, 

 cuneately narrowed to die very short petiole, irregularly ser- 

 rate, the upper leaves much smaller; flowers 4.5-8 mm. long, 

 rose to white, distincdy mucronate at apex in bud, the pedicels 



