COMPOSITAE 



867 



1. Eupatorium lindleyanum DC. E. ){iriloivii Turcz.; 

 E. lindleyanum var. trijoUolatum Makino^^SAWA-HiYODORi. 

 Rhizomes short; stems 40-70 cm. long, usually simple, densely 

 crisped-puberulent especially toward the top; leaves opposite, 

 the lower cauline small, the median rather thick, lanceolate or 

 linear-lanceolate, 6-12 cm. long, 1-2 cm. wide, mucronulate, 

 abrupdy cuneate at base, subsessile, sometimes deeply 3-cleft, 

 usually distincdy 3-nerved, with resinous glandular dots be- 

 neath, prominendy crisped-pubescent on both sides, sparsely 

 toothed; heads 4-5 mm. long, 5-flowered; involucral bracts 

 about 10, 2-seriate; achenes about 2.5 mm. long; pappus white. 

 Aug.-Oct. Wet grassy places in lowlands and low moun- 

 tains; Hokkaido, Honshu, Kyushu. Ryukyus, Formosa, 



Korea, Manchuria, China, and Philippines. 



Var. eglandulosum Kitam. Hoshi-nashi-sawa-hiyodori. 

 Leaves pubescent or nearly glabrous, without glandular-dots 

 beneath. Honshu (centr. and w. distr.), Kyushu. 



2. Eupatorium chinense L. var. simplicifolium (Ma- 

 kino) Kitam. E. japonicum Thunb.; E. japonicum var. 

 simplicifolium Makino; E. fortunei var. simplicifolium (Ma- 

 kino) Nakai; E. sachalinense var. oppositifolium Koidz. 



HiYODORiBANA. Stems tall, to 2 m. long, crisped-pubescent; 

 lo\\'er leaves small, the median large, opposite, ovate-oblong or 

 elliptic, rather regularly acute-toothed, 10-18 cm. long, 3-8 cm. 

 wide, short-acuminate, cuneate at base, glandular-dotted be- 

 neath, loosely crisped-pubescent on both sides, with 6-7 pairs 

 of lateral nerves, the petioles 1-2 cm. long; inflorescence 

 loosely corymbose; heads 5-6 mm. long, 5-flowered; involucral 

 bracts 2-seriate, the outer very short, scarious, rounded at apex; 

 achenes about 3 mm. long, glandular or pilose; pappus white. 



Aug.-Oct. Hokkaido, Honshu, Shikoku, Kyushu. 



Korea, Manchuria, China, and Philippines; very variable. 



Forma tripartitum (Makino) Hara. E. japonicum var. tri- 



partitum Makino Mitsuba-hiyodoribana. Leaves not 



glandular-dotted beneath. Honshu, Kyushu. 



Var. angustatum (Makino) Hara. E. japonicum var. tri- 

 partitum forma angustatum Makino; E. laciniatum Kitam.; 



E. japonicum var. angustatum (Makino) Kitam. Sakeba- 



HiYODORi. Leaves 3-sected, incised or pinnately lobed, with- 

 out glandular dots beneath. Honshu (Izu Prov., Tokaido 



Distr. and westw.), Kyushu. 



Var. dissectum (Makino) Hara. E. japonicum var. dis- 

 sectum Makino; B. laciniatum var. dissectum (Makino) Kitam. 



KiKUBA-HiYODORi. Resembles the preceding variety; 



leaves with glandular dots beneath. Honshu (Kinki Distr. 



and westw.), Shikoku, Kyushu. 



Var. sachalinense (F. Schmidt) Kitam. E. japonicum 

 var. sachalinense F. Schmidt; £. glehnii F. Schmidt e.x Trautv.; 

 E. sachalinense (F. Schmidt) Makino; E. hahjonense var. inter- 



medium Nakai; E. japonicum subsp. sachalinense (F. Schmidt) 



Kitam. Yotsuba-hiyodori. Leaves oblong to lanceolate. 



oblong, acutely or doubly toothed, verticillate in 3's or 4's, with 



resinous glandular dots beneath. Hokkaido, Honshu 



(centr. and n. distr.). Sakhalin and s. Kuriles. 



Var. hakonense (Nakai) Kitam. E. hakpnense Nakai; E. 

 glehnii var. hakonense (Nakai) Hara; E. japonicum subsp. 



sachalinense var. hal^onense (Nakai) Kitam. Hosoba-yo- 



TsuBA-HiYODORi. Rcscmbles the preceding variety; leaves 



lanceolate to linear-lanceolate; inflorescence often looser. 



Mountains; Honshu (centr. and w. distr.). 



3. Eupatorium fortunei Turcz. E. stoechadosmum 

 Hance; E. chinensis var. tripartitum Miq.; E. japonicum var. 



fortunei (Turcz.) Pampan. Fujibakama. Stems 1-1.5 



m. long, tufted, thinly crisped-puberulent or glabrous at base; 

 lower leaves small; median leaves opposite, usually deeply 3- 

 cleft, rarely undivided, acutely toothed, short-pedolate, lustrous 

 above, the terminal segments oblong or oblong-lanceolate, 8- 

 13 cm. long, 3-4.5 cm. wide, short-acuminate to acute, cuneate 

 to rounded at base, the lateral lobes lanceolate or oblong-lanceo- 

 late, acuminate, slighdy pilose; upper leaves smaller, usually 

 not divided, oblong; inflorescence a dense corymb; heads 7-8 

 mm. long, 5-flowered; involucral bracts about 10, 2- or 3- 



seriate, obtuse; achenes about 3 mm. long; pappus white. 



Aug.-Sept. Grassy slopes and river-beds; Honshu (Kanto 



Distr. westw.), Shikoku, Kyushu; sometimes cultivated. 



Korea and China. 



4. Eupatorium variabile Makino. Yama-hiyodori. 

 Stems 40-100 cm. long, glabrous at base, branched, crisped- 

 puberulent at top; median leaves opposite, ovate, oblong-ovate, 

 or oblong-lanceolate, 5-7 cm. long, 2.5-3.5 cm. wide, short- 

 acuminate or short-acute, truncate, shallowly cordate or 

 rounded at base, toothed, nearly glabrous on both sides, the 

 pedoles 2-3 cm. long; upper leaves slightly smaller; inflores- 

 cence dense, 3-4 cm. across; heads 4-5 mm. long, 5-flowered; 

 involucral bracts 8-9, scarious, 2-seriate, the outer very short; 



achenes 2-3 mm. long, pilose at dp. Sept.-Nov. Kyushu. 



Ryukyus. 



5. Eupatorium yakushimense Masam. & Kitam. E. 



variabile Makino pro parte Yakushima-hiyodori. Stems 



about 1 m. long, slender, glabrous at base; median leaves op- 

 posite, 9-14 cm. long, once or twice 3-cleft, the median seg- 

 ments largest, lanceolate, very long-acuminate, the lateral seg- 

 ments smaller, acutely toothed, loosely pilose on upper side, 

 glandular-dotted beneath, the petioles 2-2.5 cm. long; heads 

 4-6 mm. long, reddish, 5-flowered; involucral bracts about 

 10, scarious, acute to obtuse; achenes black, about 3 mm. 



long, 5-angled, glandular-dotted; pappus white. July-Aug. 



Along rivers; Kyushu (Yakushima). 



16. ADENOSTEMMA Forst. Numa-daikon Zoku 



Perennial herbs with leafy stems; leaves opposite, often petiolate, toothed; heads small, in loose corymbs; involucres sub- 

 globose; bracts herbaceous, 2-seriate, equal, acute, free or connate; receptacle flat and alveolate, florets all tubular, bisexual, 

 fertile; corollas 4- or 5-toothed; anthers obtuse, without appendage at apex, obtuse to subtruncate at base; style-branches elongate, 

 flat, obtuse; achenes obtusely 3-angled, glandular-dotted or tuberculate, rounded at apex; pappus of 3 or 4 clavate gland-tipped 

 brisdes. About 10 species, in warmer and tropical regions, especially in America. 



1. Adenostemma lavenia (L.) O. Kuntze. Verbesina spreading; lower leaves small; median leaves ovate or ovate- 



lavenia L.; A. viscosum Forst. Nu ma-da iKohf. Stems oblong, 4-20 cm. long, 3-12 cm. wide, rounded<uneate at 



erect, 30-100 cm. long, puberulent at top, the branches often base, obtusely toothed, sparsely pilosulous, the petioles 1-6 cm. 



