AMELAXCHIER. POMACES. 165 



PERAPHYLLDM. 



Calyx campanulate, the limb 5-parted, persistent. Petals 5. 

 Stamens 20, much shorter than the petals. Styles 35, coales- 

 cent at base or distinct Carpels 3-5, becoming membranaceous, 

 incompletely 2-celled by a partition from the back, 1 seeded. 

 Wholly covered by the adnate calyx-tube. Fruit small, berry- 

 like, crowned with the persistent calyx-lobes, the pulp sweet. 

 Seeds small, with a thin black testa. 



A. alnifolia Nutt. Journ. Philad. Acad. vii, 22. Stem slender, 3-30 

 feet high, with slender erect flexuous branches : leaves thin, elliptical to 

 obovate, obtuse at each end or often cordate, serrate toward the apex, 

 entire below, 1-2 inches long, more or less densely tomentose beneath, 

 smooth, or nearly so above: racemes many-flowered; bracts setaceous, 

 long-woolly, longer than the pedicels, caducous : calyx densely tomentose, 

 the triangular-lanceolate lobes closely reflexed, about as long as the 

 broadly turbinate tube ; petals spatulate, 6 12 lines long by 2 lines broad, 

 obtuse; stamens very short: fruit globose, 3-4 lines in diameter. Com- 

 mon aiong streams and swales, Brit. Columbia to California ^nd the 

 Rocky Mountains. 



A. florida Lindl. Bot. Reg. xix, t. 1589. Stems stoutish, erect cespi- 

 tose, 2-10 feet high with erect somewhat cinereous branchlets : leaves 

 thickish, orbicular to elliptical or ovate. 12-14 lines long, rounded to 

 acute at the apex, coarsely serrate above the middle, entire and rounded 

 or cordate at base, glabrous, or sparingly tomentose on the midrib and 

 veins beneath : stipules subulate, setaceously acuminate: racemes rather 

 loosely several-flowered ; bracts setaceous, ciliate with long straight hairs ; 

 calyx somewhat tomentose, the subulate lobes longer than the tube, re- 

 flexed, densely tomentose inside; petals oblong, 6-7 lines long by 2-4 lines 

 broad, rounded at the summit ; stamens shorter than the lobes of the 

 calyx: fruit globose, 3-4 lines in diameter. In wooded districts, Wash- 

 ington and Oregon east of the Cascade Mountains. 



A. pallida Greene Fl. Fr. 53. Stems clustered and bushy, 3-6 feet 

 high, with an ashy bark, rigid and somewhat intricately branched : leaves 

 rather thick, oblong- lanceolate to oblong or elliptical obtuse or retuse, 

 sparingly dentate towards the apex, entire and usually rounded below, 

 often entire and cuspidate, 6-10 lines long, somewhat tomentose : racemes 

 short and somewhat corymbose, the lower pedicels elongated ; calyx more 

 or less tomentose, the lobes triangular, acute, erect; petals obovate or obo- 

 vate-oblong, slightly concave, 3-6 lines long: stamens shorter than the 

 calyx. Common on dry hillsides, southern Oregon and northern Cali- 

 fornia. 



5 PERAPHYLLUM Nutt. T. & G. Fl. i, 474. 



Low much branched shrubs with deciduous leaves crowded at 

 the ends of the branchlets, and 2 4-flowered corymbs of white 

 flowers. Calyx-tube urceolate, the limb 5-lobed. Petals 5, obo- 

 vate, unguiculate. Stamens about 20, exserted. Styles 2, rarely 

 3, coherent below. Fruit a small pome containing 2, rarely 3 al- 

 most distinct carpels, each 2-celled by a spurious partition, the 

 cells 1-seeded. Seeds angular, compressed, with a cartilaginous 

 testa, erect^ with the radicle at the base. 



P. ram os is si mil in Nutt. 1. c. A shrub 4-6 feet high with hard white 

 wood and grayish bark : branches slender, recurved and more or less toi - 

 tuous, spreading widely : leaves linear-lanceolate, acute, 1-2 inches long, 

 entire or obsoletely serrulate, smooth and shining above, very minutely 

 pubescent beneath : calyx urceolate, the tube wholly adnate to" the ovary, 



