392 



Urticaceae 



forming a contiguous elongate spike; achenes about 1.5 mm. 



long, the enveloping perianth pilosulous. Aug.-Sept. 



Honshu, Shikoku, Kyushu. China and Indochina. 



Var. izuosimensis (Satake) Satake & Mizushima. B. izu- 



osimensis Satake Oshima-yabu-mao. Leaves as long as 



or shorter than vi'ide, shallowly cordate to truncate at base. 



Izu Isls. (Oshima Isl.) . 



11. Boehmeria longispica Steud. B. grandifolia'Wsdd.; 



B. tniqueliana T. Tanaka Yabu-mao. Large perennial 



herb with erect, rather densely short-pubescent stems 80-100 

 cm. long; leaves rather thick, ovate-orbicular, acuminate, 

 rounded at base, with coarse double teeth in the upper ones, 

 scabrous above, prominently short-pilose beneath; glomerules 

 on elongate axillary spikes, rather contiguous; achenes about 



2 mm. long, the enveloping perianth pilose. Aug.-Oct. 



Hokkaido, Honshu, Shikoku, Kyushu; common. 



Boehmeria robusta Satake. Maruba-yabu-mao. Resem- 

 bles the preceding but with thinner leaves. Poorly known. 



Honshu (s. Kanto Distr.). 



12. Boehmeria platanifolia Fr. & Sav. B. japonica var. 



platanifolia Maxim.; B. maximowiczii Nakai & Satake ^Me- 



yabu-mao. Stems erect, simple, to 1 m. long, short-hairy 

 above; leaves membranous, orbicular to depressed ovate-orbicu- 

 lar, often incised and long-caudate at apex, rounded to trun- 

 cate at base, with unequal coarse teeth below and larger often 

 double teeth on the upper margin, pilose on both sides, espe- 

 cially above and on nerves beneath; pistillate glomerules small, 

 rather loosely arranged on slender axillary spikes; achenes 

 about 1.5 mm. long, the enveloping perianth pilose. Aug.- 

 Oct. Lowlands and hills; Hokkaido, Honshu, Shikoku, Kyu- 

 shu; common. Korea and China. 



8. VILLEBRUNEA Gaudich. Hado-no-ki Zoku 



Dioecious trees or shrubs; leaves alternate, long-petiolate, entire or undulately toothed, penninerved or 3-nerved, the stipules 

 usually connate on the petioles; inflorescence mostly cymose, the glomerules small; staminate flowers 4-merous, the stamens op- 

 posite the perianth-segments; pistillate perianth connate, tubular, wholly adnate to the ovary, toothed on margin; stigma dis- 

 coid or peltate, hairy on margin; achenes wholly enclosed in the fleshy perianth; seeds erect. About 10 species, in India, 



Malaysia, and e. Asia. 



lA. Branchlets and petioles with long and short hairs; leaves membranous, white-woolly beneath at least while young, pistillate and 

 staminate glomerules sessile; bracteoles subacute 1 . V. jnitescens 



IB. Branchlets and petioles with short appressed hairs; leaves relatively firm, dark green, without woolly hairs; pistillate glomerules pe- 

 dunculate, the staminate sessile; bracteoles rather rounded at apex 2. V. pedunculata 



1. Villebrunea frutescens (Thunb.) Bl. Urtica frutes- 

 cens Thxiah.; Oreocnide frutescens (Thunb.) Miq.; Nirwamia 

 pellucida Raf.; Boehmeria jruticosa Gaudich.; Morocarpus 

 microcephalus Benth.; V. jruticosa (Gaudich.) Nakai; V. 

 microcephala (Benth.) Nakai; Pellionia pellucida (Raf.) Merr. 



Iwagane. Erect deciduous shrub with slender elongate 



branches; leaves oblong, sometimes ovate or elliptic, 6-12 cm. 

 long, 2.5-5 cm. wide, acutely caudate-acuminate, cuneate with 

 an obtuse end or rounded at base, dentate-serrate, coarsely 

 hirsute above and on nerves beneath, the petioles elongate, 

 slender, the stipules free, deciduous; fruit ovoid, about 1.5 

 mm. long. ^Mar.-May. Kyushu. China. 



2. Villebrunea pedunculata Shirai. Oreocnide pedun- 

 culata (Shirai) Masam. Hado-no-ki. Dark green shrub 



closely resembling the preceding; leaves somewhat thicker, 

 5-10 cm. long, 2-4 cm. wide, obtuse to rounded at base, gla- 

 brous on both sides or sparsely appressed-pilose above and 

 short appressed-puberulent on both sides, obtusely toothed, the 

 petioles 1-3 cm. long; staminate glomerules sessile, axillary, 

 the peduncles of the pistillate ones 3-5 mm. long; fruit about 



1.5 mm. long. Feb.-Apr. Honshu (Aogashima in Izu Isls. 



and Kii Prov.), Shikoku, Kyushu. Ryukyus and Formosa. 



9. DEBREGEASIA Gaudich. Yanagi-ichigo Zoku 



Monoecious or dioecious shrubs; leaves alternate, petiolate, obmsely toothed, 3-nerved, often white-woolly beneath, the stipules 

 connate above the petioles, bifid; glomerules globose, axillary, sessile or pedunculate, the inflorescence sometimes compound 

 and cymose; staminate flowers 4(3-5)-merous; pistillate perianth connate, ovoid to obovoid, toothed at apex, becoming juicy in 



fruit; ovary erect, enclosed in the perianth; stigma capitate; achenes enclosed in the perianth. Ethiopia to India, Malaysia, 



and e. Asia. 



1. Debregeasia edulis (Sieb. & Zucc.) Wedd. Morocar- 

 pus edulis Sieb. & Zucc; Morocarpus japonicus Miq.; D. ja- 

 ponica (Miq.) Koidz. Yanagi-ichigo. Deciduous shrub 



with elongate branches, the branchlets with short appressed 

 hairs; leaves lanceolate to linear-oblong, 7-15 cm. long, 12-25 

 mm. wide, acuminate, obtuse at base, subtrinerved, dark green 

 and slightly lustrous above, with appressed minute teeth on 



margin, appressed-puberulent on the nerves above, densely 

 white-woolly beneath, the petioles 1-3 cm. long; glomerules 

 1-3, axillary, globose, short-pedunculate, rather many-flowered; 

 fruit orange-yellow, about 1 mm. long. Mar.-May. Hon- 

 shu (s. Kanto Distr. through Tokaido to s. Kinki Distr.), 

 Shikoku, Kyushu. Ryukyus, Formosa, and China. 



10. PARIETARIA L. Hikage-mizu Zoku 



Slender often delicate annuals or perennials; leaves alternate, petiolate, small, trinerved, without stipules; flowers in small 

 cymes, sometimes in axillary glomerules, the outer bracts sometimes connate below the glomerules; perianth of bisexual and 

 staminate flowers (3-) 4-parted, in pistillate flowers connate into a tube; ovary free from the perianth; stigma linear, curved, 

 bearded; achenes small, inclosed in the persistent perianth. Seven or eight species in temperate regions. 



