Salicaceae; Myricaceae; Juglandaceae 369 



1-1.5 cm. long, the blades lanceolate-oblong to oblong, some- neath; staminate aments 3-3.5 cm. long, about 7 mm. in 



times elliptic, 3-10 cm. long, 15-35 mm. wide, short-acumi- diameter, short-pedunculate, very densely flowered, the bracts 



nate, obtuse at base, with incurved-undulate obtuse teeth on ovate, obtuse, long-villous; filaments short-pubescent below; 



margins, white-villous while young, soon glabrate above, style short, the stigma bifid. Kyushu. 



glaucous and glabrate or pubescent only on the midrib be- 



Fam. 63. MYRICACEAE Yama-momo Ka Sweet-gale Family 



Shrubs and trees sometimes aromatic; leaves evergreen or deciduous, simple, entire or serrate, penninerved, without stipules; 

 flowers unisexual (the plants monoecious or dioecious), in ajdls of densely imbricate scales on aments, without a perianth, brac- 

 teoles absent or many; stamens 2 to many, usually 4-6; ovary sessile, 1-Iocular; style short, the sdgmas 2; ovule solitary, basal, 

 erect, orthotropous; fruit a small or rather large, globose to ovoid drupe, often with a heavy waxy coating, the exocarp juicy or 



fleshy, the endocarp hard; seed erect, without endosperm, the embryo erect, with fleshy, flat cotyledons. Two genera, with 



about 35 species, chiefly in the Tropics, with 1 species widely distributed in boreal regions. 



1. MYRICA L. Yama-momo Zoku 



Staminate aments oblong to cylindric, sometimes short; pistillate aments short-cylindric to ovoid; ovary with 2-4 small brac- 



teoles at base; leaves without sdpules, entire or serrate. More than 30 species, chiefly in the tropics, few widely distributed 



temperate species. 



l.\. Deciduous shrub of bogs; pistillate flowers with 2 winglike bracteoles adnate at the base; fruit small, resinous-scaly, about 2 mm. long. 



1. M. gale var. tomentosa 



IB. Evergreen tree of forests; pistillate flowers subtended by 2-4 small free bracteoles; fruit relatively large, exceeding the scales, tuberculate, 



about 15 mm. long 2. M. rubra 



1. Myrica gale L. var. tomentosa C. DC. A/, tomentosa Siberia. The typical phase occurs widely in bogs in northern 



(C. DC.) Aschers. & Graebn.; Gale japonica Cheval. areas of the N. Hemisphere. 



Yachi-yanagi. Shrub with dark brown branches, soft- 2. Myrica rubra Sieb. & Zucc. M. nagi sensu DC, non 



pubescent while young; leaves oblanceolate to narrowly obo- Thunb. Yama-momo. Evergreen glabrous tree; leaves 



vate, 2-4 cm. long, 7-15 mm. wide, somewhat obtuse, long- coriaceous, oblanceolate to broadly so, 6-12 cm. long, 1-3.5 cm. 



cuneate toward the base, more or less short-pubescent, with wide, obtuse or acute with an obtuse tip, long-cuneate at base, 



few depressed teeth on upper margins, pale green beneath, entire, sometimes with few appressed teeth on upper margins, 



with yellow sessile glands on both surfaces, sessile or barely the raised nerves reddish on under side, the pedoles 5-10 mm. 



petiolate; pisdllate aments sessile, oblong to ellipsoidal, 1-1.5 long; pisullate aments sessile, narrow, 8-12 mm. long, with 



cm. long, 5-6 mm. wide at maturity; fruit about 2 mm. long, small scales; fruit globose, tuberculate, 12-15 mm. across, 



resinous, broadly ovoid, the bracteoles 2, winglike, adnate at dark red when mature. Mar.-Apr. Honshu (sw. Kanto 



the base to the fruit. Apr. Bogs; Hokkaido, Honshu (Ise Distr., and Wakasa Prov. and westw.), Shikoku, Kyushu. 



and easrw.) ; rather rare. Kuriles, SakhaUn, n. Korea, to e. s. Korea, Ryukyus, Formosa, and China. 



Fam. 64. JUGLANDACEAE Kurumi Ka Walnut Family 



Frequendy foetid monoecious trees or shrubs; leaves alternate, imparipinnate, the leaflets sessile or short-petiolate, the stipules 

 none; flowers unisexual, the staminate in long, lateral, usually pendulous aments, the perianth irregularly lobed or absent, the 

 stamens 3 to many, the filaments short, the anthers oblong; pisdllate flowers terminal, solitary or in racemes, 2-bracteolate at 

 base, the perianth 3- to 6-lobed; ovary inferior, 1- or incompletely 2- to 4-locular; ovules erect, orthotropous; styles 2, stigmatic 



on the inner side; fruit a drupe or nut, 2- to 4-lobed; seeds large, the endosperm absent, the embryo usually corrugate, oily. 



Six genera, with about 50 species, in the temperate regions of the N. Hemisphere. 



1 A. Fruit a winged nut. 



2 A. Nuts borne in axils of persistent bracts of upright conelike aments 1 . Platycarya 



2B. Nuts borne on pendulous, loose aments 2. Ptcrocarya 



1 B. Fruit a large drupe 3. Jiiglaiis 



1. PLATYCARYA Sieb. & Zucc. Nogurumi Zoku 



Deciduous tree; leaves alternate, large, the leaflets doubly serrate; aments erect, the staminate slender, short-pedunculate, usu- 

 ally few, below the pistillate, die scales lanceolate, the flowers naked; stamens 8-10; pistillate aments solitary, ovoid-oblong, with 

 imbricate, narrowly lanceolate, persistent, thick bract; bracteoles 2, adnate to the ovary; styles 5, short, thick; fruit an axillary 

 winged nutlet on the conclike aments. One species. 



1. Platycarya strobilacea Sieb. & Zucc. Petrophiloides branches brown-pubescent while young; leaves rather large, the 

 strobilacea (Sieb. & Zucc.) Reid & Chandler- — -Nogurumi, leaflets 7-15, sessile, lanceolate to narrowly ovate, 4-10 cm. 

 NoBU-No-Ki, Ya\l-\gurumi. Dcciduous tree with terete long, 1-3 cm. wide, long-acuminate, doubly serrate, loosely 



