JUGLANDACEAE • MYRICACEAE 271 



Family 96. JUGLANDACEAE. P4, A3-40, G (2) 



Ls. alternate, pinnate. Fls. unisexual, male catkins lateral, female fls. terminal. 

 Fruit large, i -seeded. 



CARYA, Hickory. Branchlets with solid pith. Lflts. toothed. 



C. alha [C. tomentosa). Mocker Nut. 100. June. D. Branchlets hairy; buds 

 large, with overlapping scales. Lflts. ov., lane, 7, hairy below, fragrant 

 when crushed; 1. -stalk hairy. Fruit i|, pear- or egg-shaped, light brown, 

 thick-stalked, kernel sweet. East North America. (Fig. 11 c.) 



C. cordiformis (C. amara). Bitter Nut. 100. June. D. Branchlets hairless at 

 maturity; buds bright yellow, scales not overlapping. Lflts. lane, 6. 

 Fruit i^, egg-shaped, grey, thin-shelled, kernel bitter. North America. 



C. glabra {C. porcina). Pig Nut. 90. June. D. Branchlets hairless; buds 

 small, with overlapping scales. Lflts. ov., lane, 7, terminal one the 

 largest, hairless. Fruit i, pear-shaped, slightly winged towards apex, 

 thin-shelled, kernel bitter. East North America. 



C. ovata. Shellbark Hickory, Shagbark Hickory. 100. June. D. Bark 

 shaggy; branchlets bright reddish brown; buds large, with overlapping 

 scales. Lflts. five, ov., lane, 7, margins fringed with hairs. Fruit 2, pear- 

 or egg-shaped, white, thin-shelled, kernel sweet. East North America. 



JUGLANS. Walnut. Branchlets with chambered pith. Ls. fragrant when 

 rubbed. 



J. nigra. Black Walnut. 100. May, D. Lflts. ov., 6, toothed. Fruit 2, round, 

 ridged. North America. (Fig. 1 1 F.) 



J. regia. Common Walnut. 100. May. D. Lflts. ov., 5, entire. Fruit 2, egg- 

 shaped, wrinkled. Caucasus to Himalaya. (Fig. ii G.) 

 Variety laciniata. Lflts. cut into deep narrow lobes. 



* Platycarya strobilacea. 30. June. D. Branchlets with solid pith, bright 

 yellowish or reddish brown. Lflts. ov., lane, 4, slightly curved, double-toothed, 

 stalkless. Catkins erect. Fruit a winged nut. China. (Fig. 17 b.) 



PTEROCARYA. Wing Nut. Bark deeply furrowed ; branchlets with chambered 

 pith; buds stalked. Lflts. lane, 5, toothed, unequal-sided at base. Fruit a winged 

 nut; in long, drooping spikes. 



P. caucasica. Caucasian Wing' Nut. 100. June. D. Common 1. -stalk not 

 winged. Fruit f, wings circular. Caucasus. (Fig. 11 e.) 



P. stenoptera {P. chinensis). 60. June. D. Common I. -stalk winged. Fruit f , 

 wings oblong or lane, forming a V. China. (Fig. 11 D.) 



Family 97. MYRICACEAE. Po, A2-16, Gi 



MYRICA. Ls. alternate, resin-dotted, toothed or lobed, sometimes entire. 

 Fls. small, in male and female catkins. 



M. (Cotnptotiia) asplenifolia. Sweet Fern. 4. April-May. D. Stems downy. 

 Ls. linear, 4, pinnately lobed, dark green, downy. Fruit cluster burr-like. 

 North America. (Fig. 36 G.) 



