378 



Fagaceae 



long; stamens 10-12; pistillate aments few-flowered, the fruit- 

 ing involucres densely appressed-puberulent; nuts ellipsoidal, 

 about 2 cm. long. May. Honshu, Shikoku, Kyushu; com- 

 mon and often planted. Korea and China. 



Var. acutaeformis Nakai. Hiro-ha-akagashi. With 

 broader thicker leaves. Reported from Kyushu. 



Quercus X idzuensis Makino, a hybrid allegedly between 

 No. 1 and No. 6. Honshu (Idzu Prov.) . 



2. Quercus hondae Makino. Cydobalanopsls hondae 



(Makino) Schottky Hanagagashi. Branches slender, 



dark red-brown, glabrous; leaves thinly coriaceous, rather 

 densely disposed toward the top of the branches, lanceolate or 

 oblanceolate, 7-13 cm. long, 2-3 cm. wide, long-acuminate, 

 vivid or rather pale green, slightly paler beneath, subentire or 

 with teeth undulate-ascending and awn-tipped, decurrent to an 

 obscure or very short petiole, the midrib slightly raised or flat 

 above, reddish beneath, the lateral nerves 8 to 13 pairs, very 

 slender. ^Mountains; Kyushu. 



3. Quercus sessilifolia Bl. Cydobdanopsis sessilifolia 

 (Bl.) Nakai; Q. pauddentata Franch.; C. pauddentata 



(Franch.) Kudo & Masam. ^Tsukdbanegashi. Evergreen; 



branches dark gray-brown, pale yellow-brown villous, soon 

 becoming glabrous; leaves coriaceous, obovate to broadly ob- 

 lanceolate, 6-10 cm. long, 2-4 cm. wide, densely pale yellow- 

 brown tomentose while young but later becoming glabrous 

 beneath, reddish when dry, abruptly or short-acuminate, 

 sparsely toothed or subentire, acute or subcuneate at base, the 

 midrib impressed above, with 8-13 pairs of rather slender 

 lateral nerves, the petioles 5-20 mm. long; stamens 10-20; 

 fruiting involucres densely short-pubescent; nuts ellipsoidal, 



about 15 mm. long. ^May. Honshu (Kanto Distr. and 



westw.), Shikoku, Kyushu. 



Quercus X takaoyamensis Makino. A hybrid of No. 3 

 and No. 1. 



4. Quercus gilva Bl. Cydobdanopsis gilva (Bl.) Oerst. 



IcHiiGASHi. Evergreen; branches dark purple-brown, 



much-branched, the branchlets, petioles, and undersides of 

 leaves yellow-brown stellate-villous; leaves coriaceous, oblance- 

 olate to broadly so, 5-12 cm. long, 1.5-3 cm. wide, abruptly 

 acuminate, acute or sometimes obtuse at base, with acute 

 short-awned teeth on upper margin, stellate-pubescent but 

 soon glabrate and deep green above, the midrib impressed 

 above, the lateral nerves 13 to 18 pairs, somewhat raised be- 

 neath, the petioles 5-15 mm. long; stamens 8-10; fruiting 



involucres short-villous; nuts elhpsoidal, about 2 cm. long. 



May. Honshu (s. Kanto Distr. and westw.), Shikoku, Kyu- 

 shu. Formosa and China. 



5. Quercus myrsinaefolia Bl. Cydobdanopsis myrsin- 

 aefolia (Bl.) Oerst.; Q. vibrayana Fr. & Sav.; Q. glauca var. 

 nudata Bl. Shira-kashi. Glabrous sparsely leaved ever- 

 green tree, with dark purple-brown branches; leaves cori- 

 aceous, lanceolate, sometimes narrowly oblong-ovate, 5-12 cm. 

 long, 15-25(-30) mm. wide, gradually long-acuminate, sub- 

 acute to rounded at base, with short mucronate teeth on upper 

 half, lustrous above, prominendy glaucous beneath, the midrib 

 scarcely impressed above, the lateral nerves very slender, 10 to 

 16 pairs, only slightly raised beneath, the petioles 1-2 cm. long; 



fruiting involucres stipitate. Apr.-May. Warmer parts of 



Honshu, Shikoku, Kyushu. 



6. Quercus glauca Thunb. Cydobdanopsis glauca 



(Thunb.) Oerst.; O. glauca var. caesia Bl. Ara-kashi. 



Evergreen; branches rather stout, dark brown, yellowish pubes- 



cent while young; leaves coriaceous, oblong, elliptic, to obovate- 

 oblong, 7-13 cm. long, 2.5-6 cm. wide, abruptly acuminate, 

 rounded to subacute at base, with acute teeth on upper half, 

 lustrous and glabrous above, glaucous beneath, densely ap- 

 pressed brownish hairy while young, becoming sparsely so 

 when fully developed, the midrib slightly impressed above, 

 the lateral nerves 8 to 11 pairs, prominent beneath, the petioles 

 1.5-2(-3) cm. long, glabrous; stamens 10-15; fruiting involu- 

 cres densely puberulous; nuts ellipsoidal, about 2 cm. long. 



Apr.-May. Honshu, Shikoku, Kyushu. Formosa and 



China; common and variable; frequendy planted, with many 

 cultivars. Grown in gardens. 



7. Quercus salicina Bl. Cydobalanopsis salicina (Bl.) 

 Oerst.; Q. glauca var. stenophylla BL; Q. stenophylla (Bl.) Ma- 

 kino; C. stenophylla (Bl.) Schottky; Q. miyagii sensu auct. 



Japon. pro parte, non Koidz. ^Urajirogashi. Evergreen; 



branches rather slender, gray-brown or pale red-brown, much- 

 branched, pale yellow-brown villous while young; leaves rather 

 loosely arranged, lanceolate to broadly so, sometimes narrowly 

 oblong, long-acuminate, obtuse to acute at base, with short 

 upright rather long mucronate teeth on upper half, glabrous 

 and lustrous above, yellow-brown pubescent while young be- 

 coming glaucous and glabrous beneath, the midrib impressed 

 above, the lateral nerves 10 to 13 pairs, slightly raised beneath, 

 the petioles 10-15 mm. long, glabrous; fruiting involucres 

 densely puberulous; nuts ellipsoidal to oblong-ovoid, 15-22 



mm. long. ^May. Warmer regions; Honshu, Shikoku, 



Kyushu. s. Korea. 



8. Quercus phillyraeoides A. Gray. Q. ilex var. phil- 



lyraeoides (A. Gray) Franch. ^Ubamegashi. Evergreen 



shrub or small tree with dense, dark gray-brown branches, the 

 branchlets densely pale red-brown stellate-pubescent; leaves 

 coriaceous, dark green, obovate-oblong to broadly so, 3-6 cm. 

 long, 1.5-3 cm. wide, slightly lustrous, obtuse to subacute, 

 rounded to shallowly cordate at base, undulately toothed ex- 

 cept near base, the midrib scarcely impressed above, the 

 lateral nerves 6 to 9 pairs, not prominent, the petioles 2-5 mm. 

 long; stamens 4-5; fruiting involucres densely puberulous; 



nuts ovoid, 13-20 mm. long. Apr.-May. Thickets and 



open woods near seashores; Honshu (Kanto Distr. and 



westw.), Shikoku, Kyushu. Ryukyus, China. Variable; 



much planted in parks and for hedges. The following are 



cultivated: Forma crispa (Matsum.) Kitam. & Horikawa. 



Q. phillyraeoides var. crispa Matsum. Biwabagashi, Chiri- 



megashi. Leaves crisped. Forma wrightii (Nakai) 



Makino. Q. wrightii Nakai; Q. phillyraeoides var. wrightii 

 (Nakai) Masam. Ke-ubamegashi. Leaves densely stel- 

 late-hairy on under side. 



9. Quercus mongoHca Fisch. Mongori-nara. De- 

 ciduous tree with rather thick, glabrous branches; leaves ob- 

 ovate or broadly so, 10-17 cm. long, 6-12 cm. wide, densely 

 aggregated toward the tip of branchlets, obtuse to subacute 

 with an obtuse tip, auriculate at base, glabrous and deep green 

 above, pale green and sometimes slightly glaucescent beneath 

 with scattered hairs on nerves or nearly glabrous, with coarse 

 deeply undulate obtuse teeth, the petioles 0-5 mm. long; 

 fruiting involucres subsessile, with keeled incurved and ap- 



pressed scales; nuts ovoid-ellipsoid. June-July. Woods in 



the temperate and cooler regions; Hokkaido, Honshu (Tanba 



Prov. and eastw., centr. and n. distr.). s. Kuriles, Sakhalin, 



Manchuria, Korea, e. Mongolia, and e. Siberia. 



Var. grosseserrata (Bl.) Rehd. & Wils. Q. aispula BL; 



