ORDEK 118. LAURELS. 295 



1. JUGLANS. Walnut. 



$ Calyx scale-like, 5 or 6-parted, with about 20 stamens. 9 Calyx ter- 

 minal, 4-parted, with 4" greenish petals and 2 fringed stigmas.. 



1 J. cine'rea. Butternut. White W. Tree 40-50f., with wide-spread branches. Leaflets 



15-17, lanceolate. Fruit oblong-ovoid. Kernel with two great lobes, rich and sweet. 

 The wood is used in ornamental work 



2 . nigra. Black W. Troe 60-iSOf., with a tall straight trunk. Leaflets 15-21, lance- 



ovate, subcordate. Fruit globular. Wood dark purple, used in cabinet-work, very 

 valuable. Seed rich in oil. 



2. CAR'YA. Hickory. 



$ Calyx scale-like, 3-parted, with 4 or 5 stamens. $ Calyx 4-cleft ; no 

 petals. Shell smooth and even. Timber very strong. 



* Leaflets 13-15, scythe-shaped. Nut oblong, thin-ehelled, very sweet.... No. 1 



* Leaflets 7-11. Nut with a tender shell and very bitter kernel Nos. 2,3 



* Leaflets 5-9. Nut roundish, hard-shelled, sweet and eatable (a) 



a Valves of the epicarp distinct to the base. Bark with loose plates Nos. 4, f 



'a Valves of the epicarp united below. Bark solid, firm.. Nos. 6-8 

 1 O. olivaefor'mis. Pecnn Nut. Tree 60-90f., in river bottoms, W. and 8.W. 



2 C. ama'ra. Bi/ter Nut. Tree 2CMOf. Leaflets sharply serrate. Nut white. 



3 O. aquat'ica. Tree 3<MOf. Leaflets enbentira. Nut reddish. Swamps, S. 



4 C. alba. Shagburk. Tree 40-50f. Leaflets' 5, the 2 lower smaller. Common. 



5 O. sulca'ta. Thick Shellbark. Tree 40-80f. Leaflets 9-11, the odd one eubsessile. 



Fruit large, oval, 4-fnrrowed ; nut pointed at both ends, shell thick. 



6 C. tomento'sa. Mocker Nut. Tree 40-60f. Lfts. 7-9, rongh-downy. Little meat 



7 O. porci'na. Pignut. Tree GO-lOOf. Leaflets 5-7, smoothish. Fruit eomewha 



pear-shaped. 



8 O. microcarpa. Tree 60-80f. Leaflets 5-7, glabrous. Nut *mall a? a nutmeg. 



ORDER CXVII'I. LAURACE^E. Laurels. 



Trees and shrubs aromatic, with alternate, simple, dotted leaves; 

 sepals colored, 4-6, slightly united, strongly imbricated ; 

 anthers 2 or 4-celled, opening upwards by as many valves ; 

 ovary 1-ovuled, becoming a drupe in fruit ; no albumen. 



Analysis of the Genera. 



Flowers perfect, the calyx persistent. Leaves evergreen .... a 

 8 Flowers imperfect. Calyx deciduous. Leaves deciduous. . . .b 



Trees. LVR. thick, lance-oblong. Fls. umbeled. S. Rjy Gall*. PKR'BEA. 



