MORACEAE 



385 



1. Ficus nipponica Fr. & Sav. F. joveolata sensu auct. 

 Japon., non Wall.; ? F. wrightii Benth.; F. foveolata var. nip- 

 ponica (Fr. & Sav.) King Itabi-kazura. Woody scan- 

 dent shrub, the branches attached to rocks or tree-trunks by 

 means of aerial roots, the young branches puberulous; leaves 

 evergreen, pale green when dried, narrowly ovate-oblong, 

 narrowly ovate or broadly lanceolate, 5-12 cm. long, 25-^ 

 cm. wide, long-acuminate, rounded at base, glabrous, whitish 

 with finely elevated prominently reticulate veinlets beneath, 

 the lateral nerves 5- to 6-paired, prominently arcuate short of 

 the margin, the petioles 1-2 cm. long, puberulent while young, 

 the stipules linear-lanceolate, about 10 mm. long; receptacles 

 axillary, sessile, globose, glabrous, 7-10 mm. across, the basal 

 bracts ovate-orbicular, obtuse, persistent, membranous, ap- 



pressed-puberulent. Honshu (Kanto Distr. and westw.), 



Shikoku, Kyushu. Ryukyus, Formosa, China, and s. Korea. 



2. Ficus pumila L. F. hanceana Maxim. O-itabi. 



Scandent shrub, the young branchlets appressed pubescent; 

 leaves evergreen, coriaceous, lustrous, 4-10 cm. long, oblong to 

 ovate-elliptic, obtuse, very obtuse to rounded at base, some- 

 times subobovate, glabrous or puberulous on nerves beneath, 

 recurved on margin, the lateral nerves 3 to 5 pairs, more or 

 less ascending, straight, the veinlets very prominently raised 

 beneath, the petioles 1.5-2 cm. long, with brown appressed 

 hairs while young; receptacles pyriform or subglobose, some- 

 times ellipsoidal, 3-4 cm. across, slightly pubescent only while 

 young, the subtending bracts deciduous, the peduncles thick, 

 8-15 mm. long. Honshu (Tokaido Distr. and westw.), Shi- 

 koku, Kyushu. Ryukyus, Formosa, and China. 



3. Ficus stipulata Thunb. F. thunbergii Ma.xim.; F. 

 foveolata var. thunbergii (Ma.xim.) King — ■ — Hime-itabi. 

 Scandent evergreen much branched shrub, the branchlets and 

 petioles red-brown pubescent; leaves narrowly to broadly 

 ovate, 1-5 cm. long, 1-2 cm. wide, subacute with an obtuse 

 tip, subrounded at base, often loosely soft-pubescent above 

 while young, brownish spreading-puberulent on die nerves 

 especially beneath, the lateral nerves 5 to 6 pairs, arcuate short 

 of the margin, the veinlets prominent beneath, the petioles 



5-10 mm. long; receptacles globose, 15-17 mm. across. 



Warmer parts; Honshu (w. Kanto Distr. and westw.), Shi- 

 koku, Kyushu. Ryukyus. 



4. Ficus erecla Thunb. var. erecta. F. japonica Bl. 



Inu-biwa. Deciduous, erect, loosely branching shrub to 4 



m. high, the branches rather thick, glabrous; leaves obovate or 

 narrowly so, 10-20 cm. long, 4-10 cm. wide, acuminate, 

 rounded or sometimes shallowly cordate to subobtuse at base, 

 glabrous, entire, pale green beneath, the petioles 1-4 cm. long, 

 glabrous; receptacles axillary, solitary, globose, abrupdy nar- 

 rowed below, 3-bracteate at base, glabrous, 1-1.3 cm. across, 



the peduncles glabrous, rather slender, 1-2 cm. long. May- 



Aug. Thickets and woods, low mountains and hills; Honshu 

 (Kanto Distr. and westw.), Shikoku, Kyushu. 



Var. sieboldii (Miq.) King. F. sieboldii Miq. Hosoba- 



inu-biwa. Leaves narrower, lanceolate. Occurs with the 



typical phase. 



Var. yamadorii Makino. Ke-inu-biwa. Coarsely pilose 



on branches, leaves and receptacles. Occurs with the typical 



phase. s. Korea, Ryukyus, and Formosa. 



5. Ficus microcarpa L. f. F. retiisa sensu auct., non L. 



Gaju-maru. Evergreen much branched glabrous tree 



with pendant aerial roots from the trunks and branches; 

 leaves coriaceous, oblong or obovate, 5-8 cm. long, 3-5 cm. 

 wide, slightly cuspidate with an obtuse tip, obtuse or cuneately 

 obtuse at base, entire, the lateral nerves not strong, rather 

 many, parallel except the lowest pair, the petioles 7-20 mm. 

 long; receptacles sessile, depressed-globose, about 8 mm. across, 



with 3 ovate-orbicular bracts at base. Kyushu (Yakushima 



and Tanegashima).- Ryukyus, Formosa, China to India, 



Malaysia, and Australia. 



6. Ficus wightiana Wall. F. superba var. japonica Miq. 

 Ako. Glabrous evergreen tree with rather stout gray- 

 brown branches; leaves coriaceous, oblong or narrowly so, 

 7-12 cm. long, 3.5-5 cm. wide, rounded at both ends, with an 

 obtusely cuspidate apex, entire, the lateral nerves 6 to 9 pairs, 

 slender, ascending, parallel, arcuate near the margin, the 

 petioles 3-6 cm. long, rather stout; receptacles globose, 6-8 



mm. across, the peduncles 3-7 mm. long, puberulous. 



Honshu (Kii Prov.), Shikoku, Kyushu; rather common on 

 lowlands near the sea. Ryukyus, Formosa, and China. 



Ficus elastica L. Indo-gomu-no-ki. Subscandent tree 

 with lustrous leaves to 30 cm. long, with numerous slender 

 parallel lateral nerves; often planted for ornamental purposes 

 in the warmer parts of our area. India. 



6. HUMULUS L. Kara-hana-s6 Zoku 



Scandent dioecious retrorsely scabrous herbs with opposite, petiolate, membranous, palmately lobed, toothed leaves, the stipules 

 lateral, free; staminate inflorescence a loosely branched large axillary panicle, the perianth-segments 5, imbricate in bud, the 

 stamens 5; pistillate inflorescence a conelike, few-flowered, bracteate, pedunculate spike, the bracts accrescent after anthesis, the 

 perianth thinly membranous, closely appressed to the sessile ovary, the style bifid, the branches deciduous; ovules pendulous; 

 achenes broadly ovate, slightly compressed, often glandular-dotted, enveloped by the accrescent perianth, the pericarp crustaceous, 

 the endosperm fleshy, the embryo coiled. Two species, in the temperate regions of the N. Hemisphere. 



lA. Leaves palmately 5- to 7-cIeft; pistillate bracts ovate-orbicular in fruit, green, partly purplish brown, herbaceous, 7-10 mm. long; 



annual \. H. japonicus 



IB. Leaves 3-lobed or sometimes unlobed; pistillate bracts ovate to ovate-oblong in fruit, papery-membranous, pale ycllow-grcen or 



slightly brown-tinged, pale inside, 15-20 mm. long; rhizomatous perennial 2.H. lupultis var. cordijoUus 



1. Humulus japonicus Sieb. & Zucc. Kana-mugura. 

 Much branched scandent, green annual, retrorsely spinose- 

 scabrous on stems and petioles; leaves membranous, long- 

 petiolate, palmately 5- to 7-cleft, 5-12 cm. long and as wide, 

 cordate, regularly serrulate, the lobes acuminate, slightly nar- 

 rowed toward base, with yellow sessile discoid glands beneath. 



scabrous on both surfaces; staminate flowers in loosely ar- 

 ranged erect panicles 15-25 cm. long, pedicellcd, nodding, 

 the anthers pale yellow, pendulous on slender filiform fila- 

 ments; pistillate spike conelike, broadly ovoid, the bracts ovate- 

 orbicular, 7-10 mm. long, imbricate, herbaceous, accrescent 

 after anthesis, scabrously pilose on back and especially on mar- 



