Okdeb UT.— PLATANACE^. 630 



2 to 9-ovuIe(l Fmit fleshy, -with as many 1-seeded nuts. Seed ascending, albu- 

 minous, radicle inferior. 



Genera 8, apKien 4, DntiTes of N. Europe, N. America and the Straits of Magolian. Proptr- 

 tUa, acidulons. The berries are nutritious. 



QENERA. 



* Stamens 3. Stigmas 6 to 9-rayed. Berry 6 to 9-seeded Empktbom. 1 



•■ Stamens 8. Stigmas 3 or 4, style slender. Drupe 8 or 4-sceded Ookema. 3 



♦ Stamens 2. Stigmas 4. Borry 2-seeded. Shrub erect Gebatiou.. 3 



1. EM'PETRUM, Tourn. Crowberry. (Gr.tT, upon, TTt-rpo?, a stone; 

 from the places of its natural growth.) Flowers $ $ . Perianth con- 

 sisting of 2 series of scales, the 3 inner petaloid ; $ Stamens 3, anthers 

 pendulous on Jong filaments. $ Stigma subsessile, 6 to 9-rayeii ; drupe 

 globular, with 6 to 9 seedlike nutlets. — Alpine undershrubs. 



E. nigrum L. Procumbent branches smooth ; Ivs. imbricated, linear-oblong, obtuse 

 at each end, nearly smooth, with a revolute margin. — A small, prostrate shrub, 

 found on the granite rocks of the White Mts. of "S. II., and the calcareous moun- 

 tains of Vt. The stem is 1 to 3 or 4f long, much branched and closely covered 

 all around with evergreen leaves, which are 2 or 3" long, half a line wide. 

 Flowers very small, reddish, crowded in the axils of the upper Ivs. Berries black, 

 not ill-flavored. May, Jn. 



2. CORE^MA, Don. (Oaiesia, Tuckerman.) (Gr. KOfyqfia, a broom ; 

 from the resemblance.) Flowers ,J ? or ^ f^ $ . Perianth of 5 or 6 

 bractlets, the 3 inner sepaloid. $ Stamens 3, sometimes 4, with ex- 

 sertcd filaments. ? Ovary 3 or 4-celled ; style filiform, 3 or 4-cleft, 

 with narrow stigmas; drupe globular, minute, with 3 or 4 nutlets. — 

 diffuse undershrubs. Lvs. linear. 



C. Courddii Torr. Diffuse, very slender, glabrous^ lvs. linear, revolute on the 

 margin, coriaceous ; fruit dry. — Sandy and rocky plains, here and there, from Can. ? 

 Me. to N. J. Sts. If high, with a reddiah-ash-colored bark, with short, verticillate 

 branches. Lvs. evergreen, numerous, spiral or imperfectly verticillate, 3" long, 

 linear, revolute. Fls. in terminal clusters of 10 to 15, with brownish scales and 

 purplo stamens and styles. — Plants with 5 are joss common than those with i 

 or ? . Mar., Apr. 



3. CERATrOLA, Mx. Sand-hill Eosemarv. (A Latin diminutive, 

 from Kepag, a horn ; referi-ing to the stigmas.) Flowers 8 . Perianth 

 of 6 to 8 imbricated, concave, fimbriate scales, the two or 4 inner mem- 

 branous. $ Stamens 2, exserted, anthers 2-celled, roundish. ? Ovary 

 2-celled; stylo short; stigmas 4 or 6, spreading, toothed; fruit a drupe 

 with 2-seed-like nuts. — A shrub with verticillate branches, crowded, 

 acerous lvs. and axillar\-, sessile fls. 



C. eriooides Mx. — Hills or plains sandy or gravoUy, Augusta, Ga. to Apalachi- 

 oola, Fla. Shrub evergreen, 3 to 6,f high. Young branohlcts downy. Lvs. in 

 close whorls of 3s and 4s, about G" long, rigid, acute. Fls. lateral, stigmas pur- 

 plo. Fr. yellowish, mnall, astringent. Aug., Sept. 



Order CXVII. PLATANACEiE. Sycamores. 



Trees with a watery juice, alternate palmate loaves and sheathing, scarious sti- 

 pules. Flowers monoecious, in globular aments, destitute of both calyx and corolla. 

 Sterile. — Stamens single, with only small scales intormised. Anthers 2-oelled, 

 linear. Fertile. — Ovary t<?rminated by a thick style with one side stigmatic. Nji 

 clavate, tipped with the persistent, recur>-ed style. Seed boUtary, albuminous. 

 Fig. 82. 



