292 



LiLIACEAE 



infundibuliform, the lobes narrowly oblong, much longer than the tube, pale lemon yellow to orange or orange-red, the venation 

 reticulate; stamens 6, inserted at the summit of tube; ovary sessile, 3-locuIar; style filiform, erect, the stigma small; capsules 

 3-angled, transversely rugulose, loculicidally dehiscent; seeds plump. About 20 species in Eurasia. 



lA. Flowers lemon-yellow; roots not thickened; perianth-tube 2-4 cm. long 1. H. vespertina 



IB. Flowers orange-yellow to orange-red; roots usually partially thickened and fusiform. 

 2A. Flowers orange-yellow; in May and June, or July in high mountains. 

 3A. Inflorescence simple, very short. 



4A. Flowers 8-10 cm. long; inner tepals 2-2.5 cm. wide 2. H. middendorffii 



4B. Flowers 5-7 cm. long; inner tepals about 1.2 cm. wide 3. H. dumortieri 



3B. Inflorescence elongate, sometimes forked 4. H. aurantiaca 



2B. Flowers orange-red, rarely orange-yellow; in July and Aug., sometimes until Nov. 

 5A. Leaves 7-15 mm. wide, rarely more. 



6A. Leaves rather thin; scapes and inflorescence without fascicles of axillary leaves 5. H. longituba 



6B. Leaves rather firm and thick; scapes and inflorescence often bearing fascicles of axillary leaves 6. H. littorea 



5B. Leaves 25-40 mm. wide; flowers usually double 7. H. fulva var. k.tvanso 



1. Hemerocallis vespertina Hara. H. thunbergii major Bak. ^Wasuregusa, Namban-kanzo, Kanz5. Leaves 



Baker?; H. citrina sensu Nakai, non Baroni Asama-kisuge, rather thick, 60-80 cm. long, 1.5-2.5 cm. wide, flat, smooth, 



YusuGE. Leaves suberect, green, 5-15 mm. wide, smooth; glaucous, ascending, arcuate above; scapes nearly as long as 



scapes erect, slender, 50-100 cm. long; inflorescence simple or the leaves, slightly thickened, often with few linear subfoli- 



forked, rather loosely 3- to 15-flowered, the lower bracts lin- aceous bracts; inflorescence short, forked, few-flowered, the 



ear-lanceolate, those above ovate-caudate, the pedicels 2-15 bracts linear-lanceolate, 2-8 cm. long, the upper bracts mem- 



mm. long; flowers nocturnal, lemon-yellow, fragrant, the peri- branous on margin, the pedicels 1-2 cm. long, the lower por- 



anth-tube 2-4.5 cm. long, the inner segments obtuse, about 7-8 tion adnate to the rachis; flowers orange-yellow, 10-13 cm. 



cm. long, 18-25 mm. wide, cross-veins few. July-Aug. long, the perianth-tube 1-2 cm. long, the inner segments 



Mountains; Honshu (centr. and w. distr.), Kyushu. Korea. narrowly oblong, subobtuse, 3-3.5 cm. wide, with prominent 



Hemerocallis yezoensis Hara. H. citrina sensu Miyabe cross-veins, membranous and undulate on margin. May- 



& Kudo, non Baroni; H. coreana Nakai, pro parte Ezo- July. Chinese plant rarely cultivated in Japan. 



KisuGE. Allied to No. 1 ; reported to have prominently arcu- 5. Hemerocallis longituba Miq. H. fulva var. longi- 



ate declined leaves; flowers yellow, diurnal. Seashore; Hok- tuba (Miq.) Maxim.; H. sendaica Ohwi ^No-kanz6, Beni- 



kaido. KANZo. Roots somewhat thickened; leaves flat, slightly 



2. Hemerocallis middendorlBi Trautv. & Meyer. Ezo- folded below, 50-70 cm. long, 7-12 mm. wide, green, smooth, 

 ZENTEi-KA. Roots rarely somewhat fusiform; leaves soft, arcuate above, rather thin; scapes 50-60 cm. long, often with 

 vivid green, flat, 1.5-2.5 cm. wide, smooth, reclined above; few scales; inflorescence forked, loosely about 10-flowered, the 

 scapes erect, 40-70 cm. long, simple; inflorescence very short, pedicels very short, the bracts ovate, 3-8 mm. long; flowers 

 the axis scarcely distinct; flowers few, 8-10 cm. long, orange- orange-yellow to orange-red, about 12 cm. long, the perianth- 

 yellow, scarcely pedicelled, the bracts broadly ovate to ovate- tube slender, 2-4 cm. long, about 2/5 to 1/3 as long as the 

 cordate, acute, the perianth-tube 1-1.5 cm. long, the inner lobes, the inner segments broadly lanceolate, gradually acute 



perianth-segments narrowly obovate to narrowly oblong, about to obtuse, with few cross-veins. July-Aug. Honshu, Shi- 



2.5 cm. wide, obtuse, with few cross-veinlets. June-July. koku, Kyushu; rather common. 



Meadows in high mountains; Hokkaido. Kuriles, Sakhalin, Hemerocallis exilis Satake. Musashino-kanzo. An al- 



Amur, Ussuri, Korea, Manchuria, and n. China. leged hybrid between H. longituba and H. vespertina. Leaves 



Var. esculenta (Koidz.) Ohwi. H. middendorffii sensu elongate, spreading, narrower; perianth-tube about 3.5 cm. 



auct. Japon., non Trautv. & Meyer; H. esculenta Koidz. long, the ovary sterile. July. 



Zentei-ka, Nikko-kisuge. Pedicels 3-12 mm. long, the 6. Hemerocallis littorea Makino. H. aurantiaca var. 



bracts narrowly ovate; perianth-mbe 1-2 cm. long. Mead- littorea (Makino) Nakai Hama-kanzo. Leaves flat, 



ows in high mountains of Honshu (centr. and n. distr.) . smooth, broad, deep green, relatively broad, thick and firm; 



Hemerocallis exaltata Stout. Tobishima-kanzo. A scapes stout, often bearing a fascicle of relatively short leaves 



robust insular plant with tall stems and broader leaves. Occurs in leaf-axils throughout the inflorescence; inflorescence 



only in Tobishima, a small islet lying on the Japan Sea side branched, elongate, few- to many-flowered, the bracts ovate to 



near Ugo Prov. (Akita Pref.) in Honshu. narrowly deltoid-ovate, 5-20 mm. long, the pedicels 1-10 mm. 



3. Hemerocallis dumortieri Morr. Hime-kanzo. Re- long; flowers orange-yellow, 10-12 cm. long, the tube 1.5-2 

 sembles the preceding but smaller; leaves green, flat, 1-1.5 cm. cm. long, the inner perianth-segments broadly lanceolate, sub- 

 wide, reclined above; scapes 25-50 cm. long, as long as to acute, about 2 cm. wide, slightly thicker than the outer ones, 



slightly longer than the leaves; racemes simple, very short, the margin membranous. Aug.-Oct. Near the seashore; 



densely few-flowered, the bracts ovate to oblong-ovate, sub- Honshu (Kanto Distr. and westw.), Kyushu. 



acute, membranous, the pedicels very short; flowers 5-7 cm. 7. Hemerocallis fulva L. var. kwanso Regel. H. dis- 



long, orange-yellow, the perianth-tube about 1 cm. long, the ticha var. \wanso (Regel) Nakai ^Yabu-kanzo, Oni-kanzo. 



inner segments oblanceolate, obtuse, sometimes with trans- Roots somewhat thickened; leaves green, flat, smooth, 40-60 



verse veinlets; anthers black. May-June. Mountains; Hok- cm. long, 2.5-4 cm. wide, arcuate above; scapes 80-100 cm. 



kaido, Honshu (centr. and n. distr.). e. Siberia, Manchuria, long, loosely few-scaled; inflorescence forked, loosely several- 



and Korea. flowered, the pedicels to 2 cm. long, often adnate to the axis 



4. Hemerocallis aurantiaca Bak. H. aurantiaca var. at base, the bracts ovate-deltoid, membranous, 4-10 mm. long; 



