632 



GUTTIFERAE 



6. Hypericum oliganthum Fr. & Sav. H. erectum var. 

 obtusijolium Bl.; H. obtusifolium (Bl.) Makino; H. ma\inoi 



Lev.; H. conjunctum Y. Kimura Aze-otogiri. Glabrous 



perennial; stems terete, slender, somewhat tufted, often 

 branched, ascending to creeping at base; leaves thin, narrowly 

 oblong to ovate-oblong, 1.5-3.5 cm. long, 8-15 mm. wide, 

 obtuse at both ends, with pellucid and/or black dots, some- 

 times black-dotted only on margin; inflorescence loosely few- 

 flowered, the bracts small, leaflike; flowers 10-12 mm. across; 

 sepals narrowly oblong, 5-8 mm. long, obtuse; petals 7-10 

 mm. long; styles 1-2 mm. long; capsules ovoid, 6-7 mm. long; 



seeds about 0.8 mm. long, minutely reticulate. Wet places 



in lowlands; Honshu (Kanto Distr. and westw.), Shikoku, 

 Kyushu; rather common. s. Korea. 



7. Hypericum kinashianum Koidz. H. umbrosum Y. 



Kimura; H. conjunctum var. longistylum Y. Kimura Mi- 



YAKO-oTOGiRi. Glabrous perennial; stems erect, terete, often 

 branched above, 20-60 cm. high; leaves rather thin, broadly 

 linear, lanceolate, or linear-oblong, 2-5 cm. long, 3-8 mm. 

 wide, obtuse or subobtuse at both ends, black-dotted, the bracts 

 linear, 2-4 mm. long; flowers 8-12 mm. across; sepals linear- 

 oblong, 3-4.5 mm. long, obtuse; black-dotted and -striated; 

 petals 4-7 mm. long, longer than the sepals; styles 2-3 mm. 

 long; capsules ovoid, 5-6 mm. long; seeds minutely reticulate, 



about 0.8 mm. long. Aug. Mountains; Honshu, Shikoku, 



Kyushu. 



8. Hypericum hakonense Fr. & Sav. Ko-otogiri. Slen- 

 der glabrous perennial; stems tufted, 15-30 cm. long, terete, 

 ascending from base, often branched; leaves thin, linear-ob- 

 long or narrowly oblanceolate, 15-25 mm. long, 2-5 mm. wide, 

 obtuse, narrowed to a petiolelike base, usually only with pel- 

 lucid dots; inflorescence loosely about 10-flowered; flowers 

 about 15 mm. across, the bracts linear to broadly so; sepals 

 lanceolate or linear-oblong, about 3.5 mm. long, rather un- 

 equal, acute to obtuse; petals 7-8 mm. long; styles 2-3 mm. 

 long; capsules ovoid-conical, 5-6 mm. long; seeds about 0.8 



mm. long, minutely reticulate. Aug.-Sept. Mountains; 



Honshu (centr. and Kanto Distr.). 



9. Hypericum sikokumontanum Makino. Takane- 

 oTOGiRi. Loosely tufted, glabrous perennial, rather wide- 

 spreading at the decumbent base; stems 10-25 cm. long, terete, 

 sometimes branched; leaves linear-oblong, about 15 mm. long, 

 2-4 mm. wide, obtuse or subobtuse, obtuse to acute and semi- 

 clasping at base, sometimes with pellucid dots and with 

 scattered black dots on the often slightly recurved margin; 

 flowers few, 18-20 mm. across; sepals lanceolate, 5-7 mm. 

 long, obtuse; petals 10-12 mm. long; styles slender, 3.5-5 mm. 

 long; capsules about 6 mm. long; seeds about 0.8 mm. long, 

 minutely reticulate. July-Aug. High mountains; Shikoku. 



Var. hyugamontanum (Y. Kimura) Ohwi. H. hyuga- 



tnontanutn Y. Kimura Kumoi-otogiri. Flowers slightly 



smaller; petals 8-10 mm. long; sepals 3-5 mm. long, often 



with protruding black dots on margin. High mountains; 



Kyushu. 



10. Hypericum perforatum L. var. angustifolium DC. 



H. foliosissimum Koidz. Kogome-otogiri. Glabrous erect 



perennial; stems 30-80 cm. long, obsoletely striate, much- 

 branched, often with short, leafy shoots in the leaf axils; 

 leaves linear to linear-oblong, 1-2.5 cm. long, 1.5-3 mm. wide, 

 obtuse at both ends, pellucid-dotted, often recurved on mar- 

 gin; flowers few, 15-18 mm. across; sepals lanceolate, 3.5^.5 

 mm. long, acute; petals 10-12 mm. long; ovary with linear 

 and elliptic glands; styles 4-5 mm. long, the stigma punctate. 



June-July. Naturalized; Honshu (near Tokyo and in 



Shima Prov.). ^Europe. 



11. Hypericum yezoense Maxim. H. procumbens Kel- 

 ler; H. mororanense Keller; H. oliganthemum Keller; H. 



porphyrandrum Lev. & Van't. Ezo-otogiri. Glabrous per- 



ennial; stems somewhat tufted, usually 10-30 cm. long, erect, 

 simple or branched, with 2 raised lines; leaves oblong to ovate- 

 oblong, 8-25 mm. long, 3-8 mm. wide, obtuse, semiclasping at 

 base, densely pellucid-dotted, the margin slightly recurved and 

 black-dotted; flowers few, 15-20 mm. across, the bracts leaf- 

 like, ovate or oblong-ovate; sepals lanceolate, 4-6 mm. long, 

 acute; petals 8-11 mm. long; styles 4-6 mm. long; capsules 



broadly ovoid, 5-8 mm. long; seeds about I mm. long. 



July-Aug. Hokkaido, Honshu (northern distr.) ; rather rare. 

 s. Kuriles and Sakhalin. 



Var. momoseanum Makino. Sei-taka-otogiri-s6. Stems 

 25-65 cm. long, solitary or few together; sepals abruptly 

 acuminate. Honshu (centr. distr.). 



12. Hypericum tosaense Makino. Tosa-otogiri. Gla- 

 brous perennial; stems erect, 25-50 cm. long, with 2 raised 

 lines; leaves narrowly oblong, obovate or ovate-oblong, 5-20 

 mm. long, 2-8 mm. wide, obtuse at both ends, densely pel- 

 lucid-dotted, the margins slightly recurved and black-dotted; 

 flowers few, 15-18 mm. across, the bracts small, linear or 

 linear-lanceolate; sepals ovate, 2.5-3 mm. long, acute; petals 

 about 1 cm. long; styles 3.5-4.5 mm. long, the stigma punctate; 

 capsules ovoid-conical, about 7 mm. long; seeds about 1 mm. 

 long, minutely reticulate. Aug.-Sept. Shikoku. 



13. Hypericum erectum Thunb. H. erectum var. wi- 

 churae Keller and var. debile Keller; H. otaruense Keller; H. 

 dtelsii Lev. & Van't.; H. erectum. subsp. vaniotii Lev.; H. ma- 

 tsumurae Lev.; H. amabile Koidz.; H. takeuchianum Koidz. 



Otogiri-so. Glabrous perennial; stems solitary or few 



together, 20-60 cm. long, simple or slightly branched, terete; 

 leaves broadly lanceolate to narrowly ovate, sometimes ovate- 

 elliptic, 2-6 cm. long, 7-30 mm. wide, obtuse or subacute, 

 rounded and semiclasping at base, black-dotted; inflorescence 

 subpaniculately few- to rather many-flowered, the bracts leaf- 

 like, small; flowers 15-20 mm. across; sepals narrowly oblong, 

 acute to subobtuse; petals 8-10 mm. long; style 3.5-4 mm. 

 long; capsules 5-11 mm. long; seeds minutely reticulate, 



about 1 mm. long. July-Aug. Grassy places and thin 



woods in hills and mountains; Hokkaido, Honshu, Shikoku, 

 Kyushu; variable and very common. 



14. Hypericum kamtschaticum Ledeb. H. mutiloides 



Keller; H. paradoxum Keller; H. paramushirense Kudo 



Iwa-otogiri. Glabrous perennial; stems tufted, 10-30 cm. 

 long, erect or ascending from base, usually simple, terete; 

 leaves elliptic, oblong, or ovate-oblong, 2-5 cm. long, 1-3 cm. 

 wide, obtuse to rounded at both ends, semiclasping at base, 

 with black or rarely with pellucid dots, sometimes without 

 dots, margins usually black-dotted, the bracts leaflike, ovate; 

 flowers 15-25 mm. across; sepals oblong or lanceolate, obtuse 

 or subacute, 6-8 mm. long; petals 8-15 mm. long; styles 4.5-6 

 mm. long; capsules 6-12 mm. long; seeds minutely reticulate, 



about 1 mm. long. July-Aug. Alpine regions; Hokkaido, 



Honshu (n. and centr. distr.) . Kamchatka and Kuriles. 



Var. senanense (Maxim.) Y. Kimura. H. senanense 



Maxim. Shinano-otogiri. Leaves black-dotted only on 



margin, with pellucid dots on the surface; flowers 15-18 mm. 

 rarely to 20 mm. across. July-Aug. Alpine regions; Hon- 

 shu (centr. and n. distr.). 



