Caprifoliaceae 



839 



toothed, nearly glabrous above, densely whitish short-pubescent 

 beneath, the petioles 4-8 mm. long; flowers 2 or 3 in upper 

 leaf-axils, often short-pedunculate; ovary glabrous or scattered 

 pilose; caljTC-segments lanceolate-linear, 3-7 mm. long, slightly 

 pilose; corolla reddish, 3-3.5 cm. long, glabrous or nearly so 

 externally, gradually ampliate; style subexserted. May- 

 June. Hokkaido, Honshu. Forma albiflora (Sieb. & 



Zucc.) Rehd. Diervilla hortensis var. albiflora Sieb. & Zucc; 

 W. nivea Carr. Shirobana-utsugi. Flowers white. 



6. Weigela japonica Thunb. Diervilla japonica 

 (Thunb.) DC; D. versicolor Sieb. & Zucc, pro parte; D. flori- 

 bunda var. versicolor (Sieb. & Zucc.) Rehd.; W. floribunda 



var. versicolor (Sieb. & Zucc.) Rehd. Tsukushi-yabu-ut- 



suGi. Shrub with gray-brown branches often pilose while 

 young; leaves oblong, ovate-oblong, or elliptic, 3-5 cm. wide, 

 6-10 cm. long, acuminate, minutely toothed, loosely pubescent 

 above while young, rather prominently ascending-pubescent 

 beneath especially on nerves, the petioles 5-8 mm. long; flow- 

 ers 1 or 2 in upper leaf-axils, sometimes short-pedunculate; 

 ovary ascending-pilose; calyx-segments broadly linear, 7-10 

 mm. long, pilose; corolla 3-3.5 cm. long, white, becoming red- 

 dish with age, short crisped pilose externally, the tube rather 



prominently ampliate; style exserted. May. Honshu (Chii- 



goku Distr.), Shikoku, Kyushu. 



7. Weigela sanguinea (Nakai) Nakai. Diervilla san- 



gtiinea Nakai Ke-utsugi, Birodo-utsugi. Shrub, sparsely 



pubescent; leaves ovate-oblong to ovate-elliptic, 6-12 cm. long, 

 2.5-6 cm. wide, acuminate, pilose on upper surface while 

 young, spreading-pilose beneath especially on nerves, the peti- 

 oles 1-3 mm. long; flowers 1 or 2 in upper leaf-axils, some- 

 times short-pedunculate; ovary pilose; calyx-segments 7-10 mm. 

 long, pilose; corolla deep reddish, 3-3.5 cm. long, pubescent 



outside; style exserted. May-June. Mountains; Honshu 



(centr. distr.). Forma leucantha (Nakai) Hara. Diervilla 



sanguinea var. leucantha Nakai Shirobana-birodo-utsugi. 



Flowers white. 



8. Weigela floribunda (Sieb. & Zucc.) K. Koch. Dier- 

 villa floribunda Sieb. & Zucc; D. versicolor Sieb. & Zucc; W. 



japonica var. floribunda (Sieb. & Zucc.) Hara, in syn. 



Yabu-utsuci. Shrub, densely pubescent; leaves elliptic, 



ovate-oblong, or ovate, 6-12 cm. long, 2.5-6 cm. wide, acumi- 

 nate, toothed, loosely pilose above, densely whitish spreading- 



pilose especially on nerves beneath, the petioles 3-5 mm. long; 

 flowers 1-3 in upper leaf-axils, subsessile or sessile; ovary pilose; 

 corolla reddish, 3-3.5 cm. long, short-pubescent outside; style 

 exserted. May-June. Honshu (centr. and w. distr.), Shi- 

 koku. Variable. 

 Var. nakaii (Makino) Hara. Diervilla sanguinea var. na- 



\aii Makino Chishio-utsugi. Plants less densely pilose 



throughout; corolla white, becoming red with age. Hon- 

 shu (centr. distr.). Forma kariyosensis (Nakai) Hara. 



W. floribunda var. \ariyosensis Nakai Nishiki-birodo-ut- 



sugi. Flowers white. Intermediate between W. floribunda 



and W. sanguinea. Honshu (mountains in Kai and Mu- 



sashi Prov.). 



9. Weigela middendorfiBana (Carr.) K. Koch. Dier- 

 villa middendorffiana Carr.; Macrodiervilla middendorffiana 

 (Carr.) Nakai; Calyptrostigma middendorffiana (Carr.) 



Trautv. & Mey. Ukon-utsugi. Shrub with exfoliating 



bark, young branches with 2 longitudinal lines of hairs; leaves 

 oblong or narrowly ovate, acute or abruptiy acuminate, acutely 

 toothed, short-pilose on nerves of upper surface, coarsely hairy 

 beneath especially on nerves, subsessile; flowers 1 or 2 in upper 

 leaf-axils and terminal on branchlets; calyx deeply bifid, the 

 upper lobes broadly oblanceolate, 3-toothed, the lower lobes 

 narrower, entire or 2-lobed; corolla 3.5-4 cm. long, pale yel- 

 low; capsules narrowly fusiform-oblong, 1.5-2 cm. long, longi- 

 tudinally striate, glabrous, crowned with persistent calyx- 

 lobes. July. Thickets on alpine slopes; Hokkaido, Honshu 



(n. distr.). s. Kuriles, Sakhalin, Ussuri, Amur, and 



Ochotsk Sea region. 



10. Weigela maximowiczii (S. Moore) Rehd. Dier- 

 villa middendorffiana var. maximowiczii S. Moore; D. maxi- 

 mowiczii (S. Moore) Makino; Calyptrostigma maximowiczii 

 (S. Moore) Makino; D. sal{aii Makino & Honda; Weigcl- 



astrum maximowiczii (S. Moore) Nakai Kibana-utsugi. 



Deciduous shrub with gray-brown branches, with 2 longitudi- 

 nal lines of spreading hairs; leaves ovate-oblong, narrowly 

 obovate, or ovate, 4-8 (-10) cm. long, 2-3 cm. wide, abruptly 

 acuminate, toothed, loosely appressed-hairy on both sides, ses- 

 sile; flowers sessile; ovary glabrous; calyx-lobes 1-1.5 cm. long, 

 loosely pilose, the limb deciduous in fruit; corolla pale yellow, 

 3.5-4 cm. long; capsules 2-3 cm. long. May-June. Moun- 

 tains; Honshu (centr. and n. distr.). 



7. LONICERA L. 



Sui-KAZURA ZOKU 



Erect or scandent shrubs; leaves opposite, petiolate, sessile, or perfoliate, usually entire; flowers usually paired, sessile, on a 

 common peduncle, usually with connate bracts and bractcoles at base; calyx-tube ovoid or subglobose, the Hmb short, 5-toothed, 

 deciduous or persistent; corolla tubular-infundibuliform or campanulate, usually zygomorphic, rarely actinomorphic, the limb 

 oblique or bilabiate, often nearly regular, the lobes imbricate in bud; stamens 5; ovary 2- or 3-locu!ar; style elongate; ovules 



many; berry 1- to 3-locuIar, each locule few seeded; seeds ovoid or oblong, with a crustaceous testa. About 180 species, 



mainly in cooler regions of the N. Hemisphere, few species in Centr. America, Malaysia, and N. Africa. 



lA. Scandent shrubs with hollow stems; fruit black or blue-black. 



2A. Bracts leaf like, ovate; young branchlets, outer side of corolla, and young leaves more or less pubescent 1. L. japonica 



2B. Bracts minute, linear or linear-lanceolate; plant.'i glabrous or soft-puberulcnt. 



3A. Leaves glabrous, not glandular-dotted beneath 2. L. affinis 



3B. Leaves soft-puberulcnt, with red-brown glandular dots beneath }>. L. Aypoglaiica 



IB. Erect or nearly erect shrubs, with pithy or rarely entirely hollow stems; iruit red. 

 4A. Branches partially hollow; ovary and fruit usually paired, not connate. 



5A. Peduncles 2-4 mm. long, shorter than to as long as the petioles; calyx-limb cup-shaped, 2-3 mm. long, 5-lobcd. 



4. L. maackji 

 5B. Peduncles 1-2.5 cm. long, much longer than the petioles; calj-x-limb shorter. 



6A. Leaves 6-1 cm. long, very acuminate 5. L. chrysantha 



6B. Leaves 2—4 cm. long, obtuse or acute with an obtuse tip. 



