1 1 A.xuncu 



Xui; TJi i;i;.\ Staiks and ("anai^a. 4-'Ut 



eailv tiin.^s ami is now plnnlr,! in all tcmi.."ralc n-iiuni^. its fniit hayint; Immmi vastly iini'n.vod 

 iiDoii its natural condition, and it has escaped and become commonly naturalized tliroujiliout 

 ensterii I'nited States and Canada. The trees atta n a heisht of from ;'.(»-r)0 ft., with wide 

 spreading branches aiul the trunk sometimes 2 or :; .t. in diameter. The close-j,'rained hard 

 wood is valued in turnery for certain uses. Lcurcx ovate to oval, mostly rounded or cordate 

 •It base acute or acuminate, irregularly serrate, gray-tonientose at first (as are all new 

 "lowtiis"). at maturitv glabrous dull green above, more or less pubescent beneath and soft in 

 texture- petioles stout. Floircr.s appearing with the leaves, white or more or less pink- 

 Hushed " 1-'* in. across, in close clusters with stout woody pedicels ^-iVi in. long: calyx 

 tomentose. Fruit very various in size and quality, that of seedling trees not true to the 

 larents and generally inferior. 



SiHKiuvx Crab, ri/nts pniuifolia Willd. ( )<casioiially fouiul escaped from cultivation. 

 It is thought to be a livbrid between /'. Mains L. and liic Asiatic /'. haccata L. It is a small 

 spreading tree differing from tlie /'. _l/*///(.v in having siii,.(.th and sometimes entire leaves, with 

 lunger more slender and smaller Iraf and fiuit-slcns and small linn tart truit. 



THE MOUNTAIN-ASHES. Ckxus SORBUS L. 



Trees and shrubs of about seven widely distiii)ute<l species of the north temiierate regions, 

 three being natives of North America and a fourth is a naturalized species introduced from 

 the Old World. They have a smooth aromatic bark, stout branchlets and large buds with 

 imbricated scales, the innermost of which are accrescent. 



Lcaroi alternate, deciduous, piunately compound (in the American species) with serrate 

 leaflets- stipules caducous. Floircr.s perfect, regular, white, in terminal comijound cyines : 

 calyx with urn-shaiied tupe and five persistent lobes imbricated in the bud; petals _.>. white, 

 spreading, rounded, with short claw: stamens numerous: ovary inferior with usually .'? carpels, 

 H distinct stvles and truncate stigmas: ovules 2 in each cell, erect. Fruit a small red berry- 

 like pome with thin flesh, papery carpels and containing in each cell 1 or 2 pointed erect seeds 

 with smooth cartilaginous coat : cotyledons fleshy, plano-convex, with no albumen. 



KEY TO THE SPECIES, 

 a Leaflets glabrous above and 



Long acuminate : fruit 1/4 in. or less in diameter S. Americana. 



A<ute or obtuse ; fruit about Vs in. in diameter S. decora. ^ 



a= Leaflets pubescent both sides ». Aucuparia. 



For species sec pp. 2.iS-2.'il uud the folloirinn: 



Oi p World Mountain-Ash, or Rowan-tree. Sorhu.s Aucuparia L. This is a round-headed 

 tree sometimes 50 or GO ft. in height with trunk from l-2y2 ft. in diameter growing naturally 

 in the forests of northern Europe and Asia. It has been extensively planted in this country 

 for ornamental purposes and has become naturalized in places. Leaves with 9-1;) oblong to 

 oblong-lanceolate leaflets •■;4-2 in. long serrate, entire at base, more or less pubescent both sides 

 especKilly ' eneath ; branchlets and petioles pubescent; buds tomentose. Flowers 1/3 in. across 

 in mostly tomentos(> coiynibs 4-C. in. across. Fruit about 1/. in. across. 



THE SERVICE-BERRIES. Genus AMELAXCHIER Medic. 



Trees and shrubs witli slender branches and long-pointed buds covered with closely 

 imbricated scales, the innermost of which are accrescent. They are of extensive distribution 

 througlioul the north temperate legions of both hemispheres. Three arborescent species are 

 known in Xortli America, two of whicli are found in the Atlantic states and the third in the 

 PacifK- coast region and eastward to Lake Superior. 



Lai(x deciduous, simiile. alternate, petiolate. serrate or entire. i)innately-veined. con- 

 duplicate in the bud - stipules linear, pink and caducous. Flowers in racemes with slender 

 bibracteohite i)edice!s ; calvx with campanulate tube, adnate to the ovary, and five narrow 

 acute reflexed persistent lobes; disk green, nectiferous ; petals five, elongated, white, with 

 short claws- stamens numerous inserted on the rim of the calyx tube with subulate iiersistent 

 stvles and oblong anthers; ovary inferior with 5 cells each partly divided by a false partition; 

 stvles 2-.") united and pubescent below, spreading above, and with truncate stigmas; ovules 

 erect. 2 in each cell. Fruit a small berry-like subglobose ixniie. purplish or blue when ripe 

 and crowned with the calvx lobes and remnants of the filaments, with juicy pleasantly 

 flavored fruit and membranaceous carpels: seeds Fi-lO. oblong, compressed, with brown 

 coriaceous testa, straight embryo and no albumen. 



Till' name is llie inipiilar name of the European species in Savoy. 



KEY TO THE SPECIES. 

 a Leaves sharply serrate and 



Ovate to ovnt(>-ol)l(Hig. acute to acniniiiate .-it apex. 

 Oblong to elliptical, acute to rounded at ap 



A. Canadensis. 

 A. obovalis. 



Leaves coarsely dentate towards the rounded anex A. alnifolia. 



For species sec pi). 2Ji2-2-'i.i and the foUouin;/: 



