Voi,. II.] 



APPLE FAMILY. 



239 



5. Amelanchier alnifolia Nutt. Northwestern June 

 or Service-berry. (Fig. 1989.) 



Aronia alnifolia Nutt. Gen. i: 306. 1818. 

 Amelanchier Canadensis var. alnifolia T. 



& G. Fl. N. A. i: 473. 1840. 

 Amelanchier alnifolia Nutt.; T. & G. Fl. 



N. A. i: 473. As synonym. 1840. 



A shrub, 6-8 bigh, more or less to- 

 tnentose-pubescent wben young, at 

 length glabrate throughout and some- 

 what glaucous. Leaves thick, broadly 

 elliptic or almost orbicular, very obtuse 

 and often truncate (rarely acutish) at 

 the apex, rounded or subcordate at the 

 base, coarsely dentate above the middle, 

 YZ'-I' long; racemes short, rather dense; 

 pedicels short; petals oblanceolate, cu- 

 neate. 3 // ~9 // long, 2-4 times the length 

 of the calyx; pome globose, purple with 

 a bloom, 3 // ~4 // high, sweet. 



Dry soil, western Ontario to British Co- 

 lumbia, south to Michigan, Nebraska, New 

 Mexico and California. April. 



6. 



Amelanchier oligocarpa (Michx. ) Roem. 



(Fig. 1990.) 



Oblong-fruited June-berry. 



Mespilus Canadensis var. oligo- 

 carpa Michx. Fl. Bor. Am. i: 

 291. 1803. 



A. Canadensis var. oligocarpa T. 

 & G. Fl. N. A. i: 474. 1840. 



Amelanchier oligocarpa Roem. 

 Syn. Mon. 3: 145. 1847. 



A shrub, 2-<) high, glabrous 

 or very nearly so throughout, ex- 

 cept the early deciduous bracts, 

 which are sometimes loosely to- 

 meutose. Leaves thin, narrowly 

 oval or oblong, generally about 

 3 times as long as broad, nar- 

 rowed and acute or acutish at 

 each end, finely and sharply ser- 

 rate, i '-3' long; racemes 1-4- 

 flowered; pedicels slender; petals 

 obovate or oblanceolate, 3 // -4 // 

 long, about twice as long as the 

 calyx; pome pear-shaped, pur- 

 ple, with a bloom, 3 // -4 // long. 



In cold swamps or wet rocky places, Labrador to western Ontario, south to northern New Eng- 

 land, Pennsylvania and Michigan. May. 



6. CRATAEGUS I,. Sp. PI. 475. 1753. 



Shrubs or small trees, usually spiny, with alternate petioled serrate lobed or pinnati- 

 fid leaves and white or pink terminal corymbose flowers. Calyx-tube cup-shaped or cam- 

 panulate, adnate to the carpels, its limb 5-lobed. Petals 5, spreading, rounded, inserted on 

 the throat of the calyx. Stamens oo , usually numerous; filaments filiform. Ovary inferior, 

 or its summit free, i-5-celled; styles 1-5, separate; ovule i in each carpel, or if 2, dissimilar. 

 Pome rather small, drupe-like, containing 1-5 bony carpels, each i-seeded or rarely 2- 

 seeded. Seed erect, flattish. [Greek, strong, from the toughness of the wood.] 



About 50 species, natives of the north temperate zone, Mexico and the Andes of New Granada. 

 Besides the following, 4 or 5 others occur in the southern and western parts of North America. 

 Corymbs many-flowered. 



Leaves obovate, spatulate or oblanceolate. 

 Foliage, pedicels and calyx glabrous. 



Leaves obovate or oblanceolate, sharply serrate. i. C. Crus-Galli. 



Leaves narrowly spatulate, crenate-dentate at the apex. 2. C. spathulala. 



Lower leaf -surfaces, pedicels and calyx somewhat pubescent. 3. C. punctata. 



