544 MONOECIA POLYANDRIA 



J. oblonga alba, Marsh. Arbust. p. 67. 



J. catbartica. Mx.f. Sylva, \. j>. 160 (Icoic, tab. 31.). 



Carya catbartica. Bart. Phil. 2. p. 178. 



Asn-coLORXD Juglaxs. Vulgo — White Walnut. Butter-nut. 



Stem 15 to 20 or 30 feet high, and 9to 15 or IS inches in diameter, with numerous 

 branches, and clothed with a smoothish cinereous bark. Leaflets in 7 or 8 pairs', 

 with a terminal odd one, 2 to 4 or 5 inches long, and 1 to 2 inches wide, oblong* 

 lanceolate, acuminate, serrate, pubescent, softly so beneath, and paler, sessile, tfie 

 base obtuse and rather rounded, mostly a little oblique; common petioles 9 to 12 

 or 13 inches long, villosc. Anient s ?> to 5 inches long, the scales oblong, spreading, 

 with about 3 segments on each margin. Pistillate jtotcers 3 to 5 or 7, in a terminal 

 spike, rather distant, sessile on a long common peduncle ; ovary oblong, hairy j 

 style very short; stigmas long, pubescent and fimbriate. Drvpe 2 to 3 inches 

 long, and 1 to near 2 inches in diameter, elliptic-ovoid, with a short tapering 

 protuberance at apex, often slightly compressed and obscurely angled, coriaceous, 

 sofily hairy and clammy ; nut about 2 inches long, and an inch in diameter, oval, 

 acuminate, somewhat compressed, deeply sulcata, with sharp irregular ridges. 



Hab. Rich bottom-lands; along streams: frequent. Fl. May. Fr. Sept— Octo. 

 Obs. This is a smaller tree, and the tcootl is not so valuable as that of the 

 preceding. The bark affords an extract, which is a convenient and popular 

 cathartic. The young drupes, collected about the last of June, make excellent 

 pickles; and are extensively used for that purpose. The nucleus of the mature 

 fruit is oily, and soon becomes rancid,— rendering it unpalatable, and unwhole- 

 some. There are no other native species, as the genus is now limited, in the U. 

 States. The J. regia y or English Walnut, has been introduced, and is occasion- 

 ally to bo met with about houses ; but our winters are rather severe for it,— and il 

 is scarcely entitled to be enumerated among our cultivated plants. 



437. CARTA. jXutt. Gen. 761. 

 TGreek, Karya, the ancient name of the Walnut tree.] 



Stamixate Fl. Aments mostly ternate, slender, imbricated; scales 

 3-partcd. Stamens 3 or 4 to (> or 8 ; anthers hairy. Pistillate 

 Fl. Perianth single, 4-clcft. Ovary interior ; style ; stigma 

 2-lobed, the lobes bifid. Pericarp 4-valved ; nut oval, somewhat 

 quadrangular, smooth. 



Trees: leaves alternate, odd-pinnate, without stipules; pubescence stellate; 

 staminate (lowers in compound aments; pericarps opening by 1 valves. Nat. 

 Ord % 87. Lindl. Juglaxdea. 



1. C. alba, Nutt. Leaflets mostly 5, obovatc- and oblong-lanceolate, 

 acuminate, sharply serrate, villosc beneath ; aments smoothish ; fruit 

 depressed-globose ; pericarp thick ; nut compressed. Beck, Hot. p. 33G. 



C. squamosa. Bart. Phil. 2. p. 179. Florul. Cestr. p. 105. 



Juglans alba ovata. Marsh. Arbust. p. 69. 



J. alba. Mx. Am. 2. //. 193. Pursh y Am. 2. /;. 637. Not of Willd. 



Pers. Ait. Muhl. Bigel. nor Lindl. 



J. compressa. Willd. Sp. 4. /;.458. Pers. Sun. 2, p. 566, Ait. Kew. 



5. p. 297. Muhl. Catal. p. 88. Lindl. Ency. p. 794. 



J. squamosa. Mx. f. Sylva, I. p. 181 (Icox, tab. 36.). Bigel Bost. 



p. 354. 



