VlTACEAE 



619 



No. 2; branches rather tliick, smooth, obsoletely angled, pale 

 brown araneous while young; leaves membranous, orbicular- 

 cordate or more or less angled, deeply cordate with a V-shaped 

 sinus at base, 7-15 cm. long and as wide, shallowly deltoid- 

 toodied, thinly arachnoid on upper side while young, dull 

 green and pale lanate beneath, often shallowly 3-lobed, the 

 median lobe slighdy larger, deltoid-acuminate to acute, the 

 petioles 5-11 cm. long, at first thinly lanate, later only the 

 spreading bases of the hairs persistent; inflorescence 10-12 cm. 

 long including the short peduncle, 3-5 cm. across, with ten- 

 drils. ^ne. Honshu (Chijgoku Distr.); rare. Korea, 



Manchuria, and Amur (species). 



4. Vitis thunbergii Sieb. & Zucc. V. ficijoUa var. thun- 

 bergii (Sieb. & Zucc.) Lavall.; V. thunbergii var. typica Ma- 

 kino; V. ficijolia var. pentaloba Nakai; V. ficifolia var. lobata 

 (Kegel) Nakai; V. labnisca var. typica P lobata Kegel; V. 



I^aenjpjcri K. Koch Eeizuru. Branches slender, striate 



and obsoletely angled, more or less reddish brown arachnoid; 

 leaves membranous, orbicular-cordate, 5-angled, 4-8 cm. long 

 and as wide, rather open-cordate to deeply cordate at base, 

 with 3(-5) lobes, these ovate to broadly so or deltoid, acute 

 to obtuse, densely reddish brown lanate beneath, the teeth 

 short or almost obsolete, short-mucronate; panicles 6-12 cm. 

 long, including the peduncles, 2-4 cm. across, sometimes with 

 tendrils; fruit globose, 5-6 mm. across, black; seeds 3.5 mm. 



long, dark reddish brown. June-July. Thickets in hills 



and mountains; Hokkaido, Honshu, Shikoku, Kyushu; com- 

 mon. China, Korea, and Formosa. 



Var. sinuata (Kegel) Kehd. V. labrusca var. typica S 



sinuala Kegel; V. ficijolia var. sinuata (Kegel) Hara Ki- 



KUBA-EBizuRU. Leaves deeply lobed, the lobes coarsely sinu- 

 ate on margin. More frequent in the western part of our 



area. 



5. Viris saccharifera Makino. V. ftexuosa var. japonica 

 Makino, in syn. Amazuru, Otoko-budo. Branches slen- 

 der, obsoletely striate, the nodes often slighdy diickened; 



leaves cordate, cordate-orbicular, or deltoid-ovate, acute to 

 acuminate, truncate or shallowly open-cordate at base, un- 

 dulately short-toothed, glabrescent and deep green on upper 

 side, reddish brown arachnoid, especially on nerves while 

 young and with axillary tufts of hairs beneath, the upper 

 leaves longer; panicles with or without tendrils, 4-6 cm. long, 

 including the peduncles, 2-3 cm. across; fruit small, black 



when mature. May-June. Honshu (Tokaido Distr. and 



westw.), Shikoku, Kyushu. 



Var. yokogurana (Makino) Ohwi. V. yokpgwana Ma- 

 kino YoKOGURA-BUDo. Arachnoid hairs sparse on leaves 



beneath, persistent at maturity. 



6. Vitis flexuosa Thunb. V. flexuosa forma typica 

 Planch. Sakkaku-zuru, Gy6ja-no-mizu. Branches slen- 

 der, slightly striate, glabrous; lower leaves depressed-deltoid to 

 cordate-deltoid, slighdy shorter to as long as wide, acute to 

 acuminate, the upper leaves elongate-deltoid, rather thin, 4-10 

 cm. long, 4-8 cm. wide, truncate to shallowly open-cordate at 

 base, green, with short deltoid teeth, glabrous on upper side, 

 the under side with the persistent bases of pale brown arach- 

 noid hairs and with axillary tufts of hairs; inflorescence with- 

 out tendrils, 4-7 cm. long, including the peduncles, 2-3 cm. 

 across; fruit globose, bluish black, about 7 mm. across; seeds 

 obovate-orbicular, about 5 mm. long. May-June. Moun- 

 tains and hills; Honshu, Shikoku, Kyushu; common. Ko- 

 rea, China, and Amami-Oshima. 



Var. tsukubana Makino. V. tsuk^ubana (Makino) F. Mae- 



kawa Usuge-sankaku-zuru. Young branches sparingly 



arachnoid; leaves glabrous above, thinly brown arachnoid be- 

 neath. Honshu (Kanto and Kinki Distr.); rare. 



Var. rufotomentosa Makino. V. itifotomentosa (Makino) 



Makino; V. gilvotomentosa Makino & F. Maekawa Ke- 



sankaku-zuru. Leaves on upper side with only the base of 



the hairs persistent, arachnoid beneath. Honshu (Kinki 



Distr., Wakasa Prov.), Shikoku, Kyushu. 



2. AMPELOPSIS Michx. No-budo Zoku 



Woody or herbaceous climbing deciduous vines with tendrils; leaves alternate, simple, somedmes compound; cymes peduncled, 

 dichotomously forked, opposite a leaf or terminal; flowers small, bisexual, green, 5-merous or rarely 4-merous; calyx-lobes 

 small; petals small, spreading, free; stamens as many as and shorter than the petals; ovary 2-locular; disc cup-shaped, entire 



or undulate-toothed, adnate to the ovary; style slender; fruit a 1- to 4-seeded berry. About 20 species, in e. Asia, centr. Asia, 



and N. America. 



lA. Leaves simple, digitately lobed. 

 I B. Leaves ternately pinnate 



1. A. brevipednnciilala 

 2. A. Ueoidcs 



1. Ampelopsis brevipedunculata (Maxim.) Trautv. 

 Cissus brevipedunculata Maxim.; C. humulijolia var. brevi- 

 pedunculata (Maxim.) Kegel; .'/. brevipedunculata var. max- 

 imou'iczii (Kegel) Rehd.; Vitis heterophylla Thunb.; A. 

 heterophylla (Thunb.) Sieb. & Zucc, non Bl.; A. regeliana 

 Carr.; A. heterophylla var. humulijolia Hook f., excl. syn.; 

 A. citrulloides Lebas; A. brevipedunculata forma citrulloides 



(Lebas) Kehd. No-bud6. Herbaceous vine, woody at 



base; branches terete, glabrous or with pale brown multicellu- 

 lar spreading hairs, the nodes slightly thickened and jointed; 

 leaves cordate. 3(-5)-lobed, 4-12 cm. long, 4-10 cm. wide, 

 paler and thinly pilose beneath, with obtuse or acute-mucro- 

 nate teeth, the median lobes ovate-deltoid, the lateral lobes 

 smaller; inflorescence many-flowered, 3i-(> cm. across; flowers 

 about 3 mm. across; petals narrowly ovate-triangular, about 



2.5 mm. long, deciduous; disc erect, entire; fruit globose, gla- 

 brous, 6-8 mm. across, purplish to blue in maturity; seeds 2, 

 rarely 1 or 3, about 4 mm. long, orbicular with an extended 



tip, rounded at back. Thickets in hills; Hokkaido, Honshu, 



Shikoku, Kyushu; very common and variable. Korea, 



China, Manchuria, Ussuri, and s. Kuriles. 

 2. Ampelopsis leeoides (Maxim.) Planch. Vitis lee- 



oides Maxim. Udo-kazura. Deciduous woody vine with 



lenticellate, glabrous branches; leaves petiolate, ternately 2- or 

 3-pinnate, 12-30 cm. long, glabrous or nearly so, the leaflets 

 petiolulate, ovate or oblong, sometimes narrowly oblong, 4-7 

 cm. long, acuminate, acute at base, with few appressed teeth, 

 the lowest leaflets ternately parted or lobed; the tendrils 2-fid; 

 inflorescence puberulous, large, apparendy terminal and pe- 

 dunculate; flowers short-pedicellcd, greenish yellow, about 2 



