LiLIACEAE 



287 



HOTOTOGisu. Stems simple, 50-70 cm. long, declined above, 

 glabrous; lower leaves narrowly ovate, the upper broadly 

 lanceolate to narrowly ovate-oblong, 7-18 cm. long, 2.5^ cm. 

 wide, perfoliate, gradually narrowed above and long-acumi- 

 nate, glabrous; flowers solitary in the axil of median leaves, 

 yellow, the pedicels shorter than the flowers, the tepals 2.5-3 

 cm. long, narrowly oblong, ascending, slighdy purple-spotted 

 inside, acute. Oct. Kyushu; rare. 



8. Tricyrtis latifolia Maxim. Tamagawa-hototogisu. 

 Plants nearly glabrous, except the inflorescence; stems 40-80 

 cm. long; leaves obovate, 8-15 cm. long, 4-9 cm. wide, rather 

 thin, abruptly acuminate, deeply cordate and prominently 

 clasping, short-ciliate while young; inflorescence cymose, at 

 suiTunit of stems and in upper axils, few- to several-flowered, 

 pedunculate; flowers yellow, with purple spots inside, the 

 tepals obliquely spreading, 2-2.5 cm. long, subacute, the outer 



segments broadly oblanceolate, the inner linear-oblong. 



July-Sept. Woods in mountains; Hokkaido, Honshu, Shi- 

 koku, Kyushu. 



Var. makinoana (Tatew.) Hiyama. T. mal{inoana 



Tatew.; T. latifolia var. 7iiWomontana Hiyama Hagoromo- 



HOTOTOGisu. The stems and leaf veins hairy beneath. Oc- 

 curs with die typical phase. 



9. Tricyrtis macropoda Miq. Yama-hototogisu. 

 Stems 40-70 cm. long; leaves ovate to oblong, 8-13 cm. long, 

 3-6 cm. wide, acuminate, subcordate and clasping except a few 

 lower ones; inflorescence axillary and terminal, few- to several- 

 flowered, densely soft-pubescent, the peduncles distinct; flow- 

 ers white with purple spots, the tepals 1.5-2 cm. long, flared on 

 upper half, acute, the outer segments broadly lanceolate, the 

 inner narrowly oblanceolate. July-Sept. Honshu, Shikoku, 



Kyushu. Forma hirsuta Masam. Plants hirsute. 



Forma glabrescens Masam. Plants glabrescent. 

 Var. chugokuensis (Koidz.) Ohwi. T. chugo\uensis 



Koidz.; T. affinis var. chugoliuensis (Koidz.) Ohwi. Chu- 



GOKU-HOTOTOGisu. Cymcs terminal and axillary, several- 

 flowered, on longer pilose pedicels and peduncles. Honshu 



(Chiigoku Distr.) ; rare. 



10. Tricyrtis affinis Makino. T. japonica sensu Masam., 



non Miq. Yamaji-no-hototogisu. Stems 30-60 cm. long, 



setose, with slighdy reflexed hairs or glabrous; leaves narrowly 

 oblong, ovate-oblong, or broadly oblanceolate, 8-18 cm. long, 

 2.5-5 cm. wide, loosely hairy, acuminate, the upper leaves clasp- 

 ing; flowers 1 to several in axils and at summit of stems, 

 about 2 cm. long, the pedicels nearly as long to slightly shorter 

 than the flowers, the tepals white, with dark purple spots in- 

 side, subacute, the outer segments broadly oblanceolate, the 

 inner lanceolate, spreading-recurved. Aug.-Oct. Hok- 

 kaido, Shikoku, Kyushu. 



11. Tricyrtis hirta (Thunb.) Hook. Uvularia hirta 



Thunb.; T. japonica Miq. Hototogisu. Perennial; 



stems 40-80 cm. long, hairy; leaves narrowly ovate-oblong to 

 broadly lanceolate, 8-15 cm. long, 2-5 cm. wide, acuminate, 

 those above usually clasping, die lower ones free; flowers (1-) 

 2-3, axillary and terminal, the pedicels usually shorter dian 

 the flowers, the tepals obliquely ascending, 2.5-3 cm. long, 

 white with purple spots inside, acute, die outer segments 

 oblanceolate, the inner ones narrowly so. Aug.-Oct. Hon- 

 shu, Shikoku, Kyushu; rather common. 



Var. masamunei (Makino) Masam. T. masamtinei Makino 



Satsuma-hototogisu. Plants glabrate. Kyushu (Sat- 



suma). 



II. HOSTA Tratt. Giboshi Zoku 



(Treatment based mainly on monograph by Dr. F. Maekawa.) 



Perennial glabrous herbs from short rhizomes, often clodied at base with fibers of disintegrated leaf-sheaths; leaves radical, 

 tufted, flat, petiolate; scapes terminal, sometimes few-scaled, the racemes simple; flowers pedicellate, bracteate, the tepals connate, 

 tubular-campanulate, the lobes 6, in 2 series, imbricate in bud, white to purplish; stamens 6, free, the filaments filiform, all 

 ascending above on one (upper) side, the andiers 2-locular, versatile, parallel; ovary 3-locular, superior; style filiform, the 

 stigma capitate; capsules loculicidal, 3-valved; seeds many. More than 40 species, all but 1 or 2 in Japan. 



I.\. Bracts 2; flowers nocturnal, fragant, white, about 11.5 cm. long; stamens Inserted on the perianth near the base. ... \. H. plantagmea 

 IB. Bract solitary; flowers diurnal, not fragant, smaller; stamens free to the base. 

 2."^. Bracts navicular, densely imbricate in bud; perianth thin, the upper dilated portion often with translucent lines. 



3A. Scapes erect, without leaflike bracts; perianth-tube with strongly impressed translucent lines on upper dilated portion, and 6 

 distinct grooves on the lower narrower portion. 

 4A. Scapes longitudinally striate; leaves chartaceous. 



5A. Scapes fistulose; racemes elongate, spikelike; bracts greenish 2. H. venusta 



5B. Scapes solid; racemes capitately congested; bracts whitish purple. 



6A. Leaves abruptly cordate 3. H. capitata 



6B. Leaves more or less truncate 4. f/. naliaiana 



4B. Scapes not longitudinally striate; bracts not leaflike. 



7A. Lower part of the perianth-tube much shorter than the upper dilated portion, colored in bud, the translucent lines very 

 much impressed. 



8.^. Leaves yellow on margin 5. H. opipara 



8B. Leaves green. 



9.\. Lower narrower portion of perianth-tube purple; leaves decurrent on the petiole, acute to acuminate. 



lOA. Leaves glaucescent; flowers deep purple 6. H. atropiirpurea 



lOB. Leaves green; flowers pale purple "• ^- rcctifolia 



9B. Lower narrower portion of the perianth-tube whitish; leaves distinctly petioled, elliptic, very obtuse. . . 8. H. decorata 

 7B. Lower portion of the perianth-tube nearly as long as the dilated upper portion, nearly white in bud, the translucent lines 

 sometimes obsolete. 



1 1 A. Leaves erect, narrow, strongly lustrous above; flowers small and few 9. H. longissima 



1 IB. Leaves somewhat spreading, dull, flowers many, larger. 



