162 CALYCANTIIACE-rE. (CALYCANTHUS FAMILY.) 



P. aucupXria, GaTtn., the EtuorEAN Mountain Ash or Rowan-tree, 

 the one more commonly planted in grounds : it has paler, oblong, and obtuse 

 leaflets, their lower surface downy, larger globose berries, and blunter and 

 tomentose leaf-buds. 



18. AMELANCHIER, Medic. June-ui;ruy. 



Calyx 5-cleft. Petals oblong, elongated. Stamens numerous, short. Styles 

 5, united below. Ovary .5-celled, each cell 2-ovuled ; but a projection grows 

 from the back of each, and forms a false partition ; the berry-like pome thus 

 10-ceIled, with one seed in each cell (when all ripen) : jmrtitions cartilaginous. 



— Small trees or shrubs, with simple sharply serrated leaves, and white Huwers 

 in racemes. (Ameluncier is the popular name of A. vulgaris in Savoy.) 



1. A. Canadensis, Torr. & Gray. (Shad-bush. Service-berry.) 

 Calyx-lobes triaiigiihu-hinie-form ; fruit globular, purplish, edible (sweet, ripe 

 in June). — Along streams, &c. : common, especially northward. April, May. 



— Varies exceedingly ; the leading forms are, — 



Var. Botrykpium; a tree 10° -30° high, nearly or soon glabrous; leaves 

 ovate-oblong, sometimes heart-shaped to the base, pointed, very sharply serrate ; 

 flowers in long drooping racemes ; the oblong petals 4 times the length of the 

 calyx. (Pyrus Botrya])inin, Wilhl.) 



Var. oblongifolia ; a smaller tree or shrul) ; leaves oblong, beneath, like 

 the branchlets white downy when young ; racemes and petals shorter. 



Var. rotundifolia ; with broader leaves and smaller petals than in the first 

 variety ; racemes 6 - 10-flowered. 



Var. alnifdlia; shrub, with the roundish leaves blunt or notched at both 

 ends, serrate towards the summit ; racemes dense and many-flowered. — Chiefly 

 in the Western States and westward. 



Var. oligoearpa ; shrub, with thin and smooth narrowly oblong leaves, 

 and 2 - 4-flowered racemes, the broader petals scarcely thrice the length of the 

 calyx. — Cold and deep mountain swamps, northward. 



Order 34. CAL-YCANTHACE^. (Calycantiius Family.) 



Shrubs with opposite entire leaves, no stipules, the sepals- a jid petals similar 

 and indefinite, the anthers adnate and extrnrse, and the cotyledons convolute : 

 the fruit like a rose-hip. Chiefly represented by the genus 



1. CALYCANTHUS, L. Carolina Allspice. Sweet- 



SCENTLI) Siiuun. 



Calyx of many sepals, united below into a fleshy inversely conical cup (with 

 some leaf-like bractlets growing from it) ; the lobes lanceolate, mostly colored 

 like the petals ; which arc similar, in many rows, thickish, inserted on the top 

 of the closed calyx-tube. Stamens numerous, inserted just within the petals, 

 short; some of the inner ones sterile (destitute of anthers). Pistils several or 

 many, enclosed in the calyx-tubc, inserted on its base and inner face, resembling 

 those of the Pose ; but the enlarged hip dry when ripe, enclosing the achenia. 



