676 



CARYA 



CARYA 



the trees are to stand, but if grown in the nursery and 

 transplanted several times when young, trees 6-10 ft. 

 high may be transplanted successfully. 



Propagation is usually by seeds stratified and sown in 

 spring in rows about 3 inches deep; named varieties 

 may be grafted in. spring in the greenhouse, on potted 

 stock of C. cordiformis, which seems to be the best 

 species for this purpose, veneer- or splice-grafting 

 being usually employed; sometimes also increased by 

 root-sprouts. For further horticultural advice, see 

 Hickory-nut and Pecan. 



alba, 8, 10. 

 amara, 4. 

 aquatica, 3. 

 borealis, 6. 

 cordifprmis, 4. 

 fraxinifolia, 10. 

 glabra, 5. 

 Halesii, 10. 



INDEX. 



illinoensis, 1. 

 laciniosa, 9. 

 microcarpa, 6, 10. 

 myristicaeformis, 2. 

 Nuttallii, 10. 

 obcordata, 6. 

 obovalis, 6. 

 odorata, 6. 



olivseformis, 1. 

 ovalis, 6. 

 ovata, 10. 

 Pecan, 1. 

 porcina, 5. 

 sulcata, 9. 

 tomentosa, 8. 

 villosa, 7. 



A. Scales of buds valvate, 4-6'- fr. with winged sutures; 

 nut usually thin-shelled: Ifts. 7-15, usually falcate. 



B. Nut mostly elongated, almost terete; husk thin, splitting 



to the base; kernel sweet; cotyledons entire or only 

 notched at the apex. 



1. Pecan, Engler & Graebn. (Juglans Pecan, Marsh. 

 Hicdria Pecdn, Brit. C. illinoensis, Koch. C. olivseformis, 



823. Foliage and pistillate 

 flowers of Carya Pecan. 



Nutt.). PECAN. Fig. 823. To 170 ft., with branches 

 pubescent when young: bark deeply furrowed, grayish 

 brown: winter-buds yellow: Ifts. 11-17, short-stalked, 

 oblong-lanceolate, acuminate, serrate or doubly ser- 

 rate, tomentose and glandular when young, usually 

 glabrous at length, 4-7 in. long: staminate catkins 

 almost sessile: fr. 3-10 in clusters or spikes, oblong, 

 1K~3H in. long; nut ovoid or oblong, smooth, brown, 

 irregularly marked with dark brown, 2-celled at the 

 base; kernel sweet. From Iowa and Ind. south to Ala. 

 and Texas; also in Mex. S.S. 7:338-9. A.G. 12:273- 

 275. U.S.N.C.l, 8, 9. This species is the most im- 

 portant as a fr. tree, and many named varieties are cult. 

 in the southern states, but it is tender N. The wood 

 is less valuable than that of the other species. Hybrids 

 are known of this species with C. cordiformis, C. alba 

 and C. laciniosa, for which see Rep. Mo. Bot. Gard. 7, 

 pis. 20-23 and Gng. 2:226. See Pecan. 



2. myristicaeformis, Nutt. (Hicdria myristicaefdrmis, 

 Brit.). NUTMEG HICKORY. Tree, to 100 ft., with dark 

 brown bark, broken into appressed scales: winter-buds 

 brown: Ifts. 5-11, short-stalked or almost sessile, ovate- 

 lanceolate, the uppermost much larger and obovate, 

 serrate, scurfy-pubescent beneath when young and with 

 brown scales above, at length dark green above, silvery 

 and lustrous beneath, 3-5 in. long: staminate catkins 

 peduncled: fr. generally solitary, short-ovoid or obovate, 

 about 1^2 in. long; nut ovoid, reddish brown marked 

 with irregular spots and stripes, thick-shelled, 4-celled 

 below; kernel sweet. From S. C. to Ark. and Mex. 

 S.S. 7:342-3. A very decorative species on account of 

 its handsome foliage, but not hardy N. 



BB. Nut usually so broad as long, compressed, with irregu- 

 larly angled or reticulate surface, thin-shelled, 4~ 

 celled below; kernel bitter; cotyledons deeply 2-lobed. 



3. aquatica, Nutt. (Hicdria aquatica, Brit.). WATER 

 HICKORY. BITTER PECAN. Usually small tree, rarely to 

 100 ft., with light brown bark separating into long, thin 

 plates: winter-buds dark reddish brown: Ifts. 7-13, 

 sessile or short-stalked, lanceolate, long-acuminate, 

 finely serrate, yellowish tomentose when young, gla- 

 brous at length: fr. 34, ovoid to broadly obovate, 



in. long; husk thin, splitting to the base; nut 

 obovate, much compressed, irregularly angled and 

 ridged, dull reddish brown; kernel very bitter. 

 From Va. to 111., south to Fla. and Texas. 

 S.S. 7:344-5. U.S.N.C. 12, 7-8. 



4. cordiformis, Koch (Hicdria minima, Brit. 

 C. amara, Nutt.). BITTERNUT. SWAMP 

 HICKORY. Tree, to 100 ft.: bark grayish 

 brown, broken into thin scales: young 

 branches and petioles glabrous : winter-buds 

 bright yellow: Ifts. 5-9, ovate-lanceolate to lanceolate, 

 acuminate, densely serrate, pubescent when young and 

 glandular, almost glabrous at length, 3-6 in. long: fr. 

 2-3, broadly obovate or subglobose, winged from the 

 apex to the middle, %-!% in- long; husk thin, splitting 

 somewhat below the middle; nut slightly compressed, 

 roundish, abruptly contracted into a short point, 

 smooth, gray; kernel bitter. Que. to Minn., south to 

 Fla. and Texas. S.S. 7:340-1. Em. 226. A valuable 

 park tree, with handsome rather broad head, growing 

 in cult, more rapidly than other hickories. 



AA. Scales of buds imbricate, more than 6: fr. not or 

 slightly winged at the sutures; nut usually thick- 

 shelled, 4-celled below: Ifts. 3-9, not falcate, the 

 uppermost larger and generally obovate. 



B. Buds small? %-%in. long: husk thin; nut slightly or 



not angled. 



C. Lvs. glabrous or only slightly pubescent while young: 



nut not or only slightly angled, thin-shelled. 



5. glabra, Sweet (Hicbria glabra, Brit. C. porcina, 

 Nutt.). PIGNUT. Figs. 824, 825. Tree, occasionally to 



