622 



TiLIACEAE 



linear, slightly pilose, with a hairy protuberance outside just 

 below the apex; petals slightly shorter than the sepals; fruit 

 globose, 6-7 mm. across, densely uncinate-spinulose, smooth 



or spreading-pilosulous at base. Aug.-Oct. Honshu 



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



Ryukyus. 



2. CORCHOROPSIS Sieb. & Zucc. Karasu-no-goma Zoku 



Stellate-pilose annuals; leaves petiolate, simple, dentate, 3- or 5-nerved, with short lateral nerves, the stipules linear, deciduous; 

 flowers solitary, axillary, yellow, rather small, the pedicels with 3 filiform bracteoles on upper part; sepals 5, lanceolate, persistent; 

 petals 5, slightly longer than the sepals, obovate; perfect stamens 10-15, free or connate at base, the staminodes 5, linear, longer 

 than the stamens, slightly thickened on upper part; ovary 3-locular, with many ovules in each locule; style simple, subclavate, 

 the stigma truncate and 3-toothed; capsules elongate, terete, loculicidally dehiscent into 3 valves. Few species, in e. Asia. 



1. Corchoropsis tomentosa (Thunb.) Makino. Corcho- 

 rus tomentostis Thunb.; Corchoropsis crenata Sieb. & Zucc. 



Karasu-no-goma. Erect, branched annual with stellate 



pubescence; leaves ovate, 4-8 cm. long, 2-4.5 cm. wide, sub- 

 acuminate, rounded to subtruncate at base, obtusely toothed, 

 densely stellate-pubescent on both sides, the petioles 0.5-5 cm. 

 long, stellate-pubescent; peduncles axillary, slender, 1.5-3 cm. 

 long, the bracteoles linear, ternately subverticillate, erect, stel- 

 late-pubescent; sepals recurved, linear-lanceolate, 6-8 mm. 



long, acuminate, stellate-pilose on the outside; petals obovate, 

 7-10 mm. long, staminodes linear, slightly thickened on upper 

 part, 7-9 mm. long, granular-tuberculate; capsules 3-4 cm. 

 long, about 3 mm. across, stellate-pilose; seeds ovoid, less than 



3 mm. long, with obscure transverse ridges. Aug.-Sept. 



Sunny grassy places and waste grounds in lowlands and low 



mountains; Honshu, Shikoku, Kyushu; rather common. 



Korea and China. 



3. TILIA L. 



Shina-no-ki Zoku 



Deciduous trees with simple or stellate hairs; leaves alternate, petiolate, usually obliquely cordate at base, toothed; inflores- 

 cence cymose, the peduncle adnate on a leaflike axillary or terminal bract; flowers bisexual, rather small, white or yellowish; 

 sepals and petals 5, the latter with or without a petaloid scale at base inside; stamens all perfect, many, free or connate at base, on 

 the receptacle; ovary 5-locular, with 2 ovules in each locule; style simple, the stigma 5-toothed; fruit globose, nutlike, inde- 

 hiscent, 1- or 2-seeded, the seeds with endosperm. About 30 species, in temperate regions of the N. Hemisphere. 



lA. Petioles 8-15 mm. long; leaves obliquely and broadly ovate to oblong-ovate, 5-8 cm. long, 2.5-5 cm. wide; inflorescence furfuraceous 



or glabrescent 1 . T. kjusiana 



IB. Petioles 2-7 cm. long; leaves obliquely 3-angled, broadly ovate to obliquely cordate-orbicular, 5-17 cm. long, 3-15 cm. wide. 

 2A. Bract of the inflorescence adnate from base of the peduncle; branchlets and under surface of leaves usually densely pilose. 

 3A. Leaves without axillary tufts of hairs on underside. 



4A. Staminodes slightly shorter than the sepals; fruits densely short-pilose; Chinese species planted around temples. 



2. T. miqueliana 

 4B. Staminodes much longer than the sepals; fruits villous with both long red-brown hairs and short pubescence; indigenous. 



4. T. rujovillosa 

 3B. Leaves with axillary tufts of hairs on under side; staminodes about as long as the sepals; fruits densely yellowish brown-hairy. 



3. T. maximowicziana 



2B. Bract adnate from about the middle part of the peduncle; leaves 5-8 cm. long, glabrous or nearly so except for axillary tufts of hairs 



beneath; young branches usually glabrous 5. T. japonica 



1. Tilia kiusiana Makino & Shiras. Hera-no-ki. 

 Young branchlets puberulous; leaves oblique, broadly ovate, 

 ovate-elliptic, sometimes oblong, 5-8 cm. long, 2.5-5 cm. wide, 

 abruptly caudate-acuminate, broadly and obtusely cuneate on 

 one side at base, truncate to shallowly open-cordate or rounded 

 on other side, serrate, puberulous on both sides, paler and with 

 yellowish brown axillary hairs beneath, the petioles 8-15 mm. 

 long; inflorescence furfuraceous or glabrescent; sepals about 

 4 mm. long; petals lanceolate, 5-6 mm. long; staminodes 

 linear-oblong, as long as the sepals; fruit subglobose, 4-5 mm. 



long, densely brownish puberulous, without ribs or ridges. 



July. Honshu (Yamato, and w. Chugoku Distr.), Shikoku, 

 Kyushu. 



2. Tilia miqueliana Maxim. T. \inashii Lev. & Van't.; 



T. jranchetiana C. K. Schn. Bodaiju. Branchlets densely 



grayish stellate-puberulent; leaves oblique, 3-angled, ovate to 

 cordate-orbicular, 5-10 cm. long, 4-8 cm. wide, narrowly del- 

 toid-acuminate, broadly cuneate to subrounded on one side at 

 base, cordate on the other side, usually acutely serrate, glabrous 

 on upper side, with grayish stellate hairs and without axillary 

 tufts of hairs beneath, the lateral nerves 7-10 pairs, nearly 



parallel and straight, the petioles 1.5-7 cm. long, densely 

 stellate-puberulous; sepals about 5 mm. long; petals slightly 

 longer than the sepals, cuneate, rounded, ciliolate at tip; 

 staminodes slightly shorter than the sepals; fruit subglobose, 

 7-8 mm. across, 5-ribbed at base, densely grayish brown puber- 

 ulous.' Planted around temples. China. 



3. Tilia maximowicziana Shiras. T. miyabei Jack; T. 



maximowicziana var. shirasawae Engl. Oba-bodaiju. 



Branches rather thick, densely yellowish brown stellate-puberu- 

 lous; leaves cordate-orbicular, 10-15 cm. long, 8-12 cm. wide, 

 abruptly acuminate, obliquely cordate, or subtruncate on one 

 side at base, deltoid-toothed, pale yellowish brown stellate- 

 pubescent on both surfaces, densely so and with axillary tufts 

 of hairs beneath, the tertiary nerves rather prominendy raised 

 beneath, the petioles 4-7 cm. long, densely pubescent; inflores- 

 cence inserted near base of the bract; sepals 7-8 mm. long; 

 petals oblong-cuneate, slightly longer than the sepals; stami- 

 nodes as long as the sepals, oblanceolate; fruit subglobose, 



5-angled, 8-10 mm. long, grayish puberulous. June-July. 



Hokkaido, Honshu (centr. distr. and northw.). 



Var. yesoana (Nakai) Tatew. T. miyabei var. yesoana 



