Primulaceae 719 



minutely glandular-hairy, tlie bracts oblanceolate, few-toothed; Leaves more densely pubescent and deeply cordate; flowers 



calw-iobes lanceolate, acuminate, 3-4 mm. long, nearly as long rather dense. Hokkaido (Rishiri and Rebun Isls.). 



as the tube, glabrous; corolla rose-purple, 15-17 mm. across, Var. yezoensis (Miyabe & Tatew.) Hara. C. sachalinensis 



the lobes 5, narrowly ovate, obtuse, 5-7 mm. long; anthers 5-6 var. yezoensis Miyabe & Tatew.; C. corcana var. yezoensis 



mm. long, shorter than the style. June. Mountains; Hok- (Miyabe & Tatew.) Hara S.\kura-s6-modoki. Leaves 



kaido (Jozankei). rather densely pubescent and the teedi larger and more acute. 



Var. congesta (Miyabe & Tatew.) Ohwi. C sachalinensis Mountains; Hokkaido (Oshima and Ishikari Prov.). The 



var. congesta Miyabe & Tatew.; C. coreana var. congesta species in the broad sense occurs from Sakhalin, Korea, and 



(Miyabe & Tatew.) Hara Rebun-sakura-s6-modoki. n. China to Europe. 



6. PRIMULA L. Sakura-s6 Zoku 



Perennials with short rhizomes; leaves usually radical, rarely densely arranged on short caudiculi, obovate-spathulate or ovate- 

 orbicular and subsessile or reniform-orbicular and long-petiolate, entire or palmately lobed, usually toothed; flowers in terminal 

 umbels or superimposed on the scapes, rarely solitary, white to lavender or rose-purple, rarely yellow, the bracts small, without 

 bracteoles; calyx tubular to infundibuliform, 5-lobed; corolla salverform or campanulate, often with appendages on the throat, 

 the limb 5-lobed, imbricate in bud, entire or again 2-lobed; stamens inserted on the tube or throat, included, the filaments very 

 short, the anthers obtuse; ovary globose or ovoid; style simple, slender; capsules globose to cylindric, 5-valved; seeds many, 



peltately attached. More than 200 species, in Europe, Asia, Malaysia, especially abundant in w. China and the Himalayas, few 



in N. and S. America. 



lA. Leaves glabrous, sometimes farinose, decurrent below to the petiole or sessile. 

 2A. Small herbs with leaves less than 10 cm. long; scapes 6-20 cm. long; flowers in single, terminal umbels. 



3A. Leaves with few coarse teeth on upper margin, rather fleshy, not farinose, quite glabrous and green, without raised nerves be- 

 neath; capsules elliptic or ovoid-globose, shorter or slightly longer than the calyx; bud-scales with incurved margins; plants of 

 wet slopes and bogs in high mountains. 

 4A. Flowers rather large, fully expanding, usually rose-purple, the tube 7-8 mm. long; corolla-lobes obtriangular or obovate-del- 



toid, rather deeply bifid, the lobes ascending 1. P. ciineifolia 



43. Flowers smaller, not fully expanding, white with a yellow eye, the tube about 5 mm. long; corolla-lobes elliptic or obovate, 



shallowly bifid, the lobes not divergent 2. P. nipponica 



3B. Leaves with small obtuse teeth on upper margin, yellow- or white-farinose or somedmes glabrous, with raised midrib and nerves 

 beneath; capsules short-cylindric, usually longer than the calyx; bud-scales with recurved margins; plants not of bogs. 



5A. Leaves not farinose, broadly ovate, abruptly narrowed to a petiolelike base 3. P. macrocarpa 



5B. Leaves white- to yellow-farinose beneath. 



6A. Mealiness prominent, yellow 4. P. modesta 



6B. Mealiness thin, white 5. P. yuparensis 



2B. Rather large herb with leaves 15-40 cm. long; scapes 40-80 cm. long; flowers in superimposed umbels 6. P. japonica 



IB. Leaves and scapes pubescent, not farinose, ovate to reniform-orbicular, long-petiolate, incised or lobulate and toothed. 



7A. Leaves ovate to ovate-elliptic; calyx broadly infundibuliform, much longer than the depressed -conical capsule 7. P. sieboldii 



7B. Leaves ovate-orbicular to reniform; calyx tubular to tubular-campanulate, shorter to longer than the oblong to cylindric capsule. 



8.\. Rhizomes rather long-creeping, the scales persistent 8. P. hida^ana 



8B. Rhizomes tufted or short-creeping, the scales membranous, soon withering and not persistent. 

 9A. Scapes 15-40 cm. long, much longer than the leaves; leaves deeply incised to lobed. 



lOA. Leaves incised and minutely toothed; flowers usually rose-purple, salverform; corolla-lobes spreading, the tube 12-14 mm. 



long 9. P. jesoana 



lOB. Leaves deeply incised or lobed, scarcely toothed; flowers white, infundibuliform; corolla-lobes obliquely spreading, the tube 



6-8 mm. long 10. P. takcdana 



9B. Scapes 5-10(-15) cm. long, scarcely longer than the leaves; leaves scarcely lobed. 



IIA. Calyx 10-15 mm. long, the lobes prominently long-pubescent 11. P. kjsoana 



IIB. Calyx 5-8 mm. long, the lobes glabrcscent or glabrous. 



12A. Leaves usually without multicellular long hairs above; corolla-tube 12-20 mm. long 12. P. tosaensis 



12B. Leaves pubescent above, at least while young, with long whitish hairs; corolla-tube 8-10 mm. long 13. i?. reinii 



1. Primula cuneifolia Ledeb. P. cuneijolia var. dubyi kaido. Kuriles, Sakhalin, Ochotsk Sea region, Aleutians, 



Pax Ezo-KOZAKURA. Glabrous, rather fleshy, vivid green and Alaska. 



perennial with short rhizomes; leaves 7-10, radical, obovate- Var. hakusanensis (Franch.) Makino. P. hakusanensis 



cuneate, 2-4 cm. long, 1-1.5 cm. wide, rounded, cuneately nar- Franch.; P. cuneijolia sensu auct. Japon., non Ledeb.; P. ciinei- 



rowed to a petiolelike base, flat, without distinct nerves, with jolia var. tanigawaensis Tatew. Hakusan-kozakura. 



a few coarse teeth on upper margin; scapes 5-15 cm. long, um- Larger; leaves 3-8 cm. long, 1-2.5 cm. wide, the teeth more 



bellately 3- to 6-flowered, the bracts linear, entire, small, the numerous, unequal, narrower; scapes 5-20 cm. long, 1- to 10- 



pcdicels 5-10 mm. long, minutely glandular-dotted; flowers flowered, the pedicels 1-2 cm. long. Wet alpine slopes; 



rose-purple, about 2 an. across, fully expanding; calyx 4-6 mm. Honshu (centr. and n. distr.). 



long, 5-cleft, the teeth lanceolate, obsoletely mucronate; corolla- Var. heterodonta (Franch.) Makino. P. heterodonta 



tube 7-8 mm. long, shorter than the limb; capsules broadly Franch.; P. hakusanensis var. heterodonta (Franch.) Takeda 



ovoid-ellipsoidal, about 5 mm. long, as long as to slightly Michi-no-ku-kozakura. Plant larger and the leaves 



shorter than the calyx. July-Aug. Wet alpine slopes; Hok- broader. Mount Iwaki in Honshu. 



