APPLE FAMILY 471 



Top of ovary and leaves, at least when young, pubescent. 

 Styles 4 or 5 ; fruit dark purple at maturity. 



Leaves floccose-tomentose beneath; petals 12-15 mm. long. 4. A. florida. 



Leaves tomentulose beneath; petals 7-10 mm. long. 5. A. gracilis. 



Styles 2 or 3; fruit reddish or orange at maturity; leaves pale. 



Leaves coarsely toothed to below the middle. 6. A. utahensis. 



Leaves entire or finely toothed toward the apex, often mucronate. 7. A. pallida. 



1. Amelanchier glabra Greene. Smooth or Glabrous Service-berry. Fig. 2532. 



Amelanchier glabra Greene, Fl. Fran. 52. 1891. 



Amelanchier basalticola Piper in Piper & Beattie, Fl. Palouse Reg. 100. 1901. 



Shrub 1-2 m. high, with reddish-brown twigs, the whole plant glabrous or sometimes the 

 sepals more or less villous on the inner surface. Leaves suborbicular to broadly oblong, 2-3 cm. 

 long, truncate to retuse at apex, obtuse to subcordate at base, green above, paler beneath, rather 

 coarsely crenate-serrate to near the base; petals oblong-spatulate, 10-15 mm. long, rarely longer; 

 sepals triangular-subulate, equaling the hypanthium ; fruit dark purple. 



Borders of woods, and along streams, Canadian Zone; eastern Washington and Idaho to the Sierra Nevada, 

 California. Type locality: in the Donner Lake region, Sierra Nevada, California. April-June. 



2. Amelanchier Cusickii Fernald. Cusick's Service-berry. Fig. 2533. 



Amelanchier Cusickii Fernald, Erythea 7: 121. 1899. 



Low shrub 1-3 m. high, with red-brown slender erect branchlets. Leaves ovate to ovate- 

 elliptic, acute or acutish at apex, obtuse or rounded at base, 2-3.5 cm. long, sharply serrate to 

 near the base, bright green above; raceme short, 3-6-flowered; hypanthium glabrous; sepals 

 subulate, glabrous without, hairy within ; petals oblong to oblong-oblanceolate, 10-15 mm. long ; 

 fruit dark purple. 



Stream banks and bluffs, Arid Transition and Canadian Zones; Blue Mountains of southeastern Washing- 

 ton to the Klamath region, southern Oregon. Type locality: stony hills, Union County, Oregon. April-May. 



3. Amelanchier Covillei Standley. Coville's Service-berry. Fig. 2534. 



Amelanchier Covillei Standley, Proc. Biol. Soc. Wash. 27 : 198. 1914. 

 Amelanchier alnifolia var. Covillei Jepson, Man. Fl. PI. Calif. 510. 1925. 



Shrub 1-2 m. high, with stout brownish-red glabrous branches. Leaves 1-2 cm. long, oblong- 

 oval or rarely obovate-orbicular, rounded or usually pointed at apex, rounded or broadly cuneate 

 at base, rather finely serrate to near the base, glabrous, firm, pale green and somewhat glaucous ; 

 racemes short, rather densely few-flowered, glabrous ; hypanthium glabrous ; sepals triangular- 

 subulate, 2.5-3 mm. long, reflexed; petals 5-6 mm. long, obovate-oblong. 



Canyons of desert mountains, Upper Sonoran Zone; Panamint Mountains, California, to southern Nevada 

 and northern Arizona. Type locality : Cottonwood Canyon, Panamint Mountains, California. April-May. 



4. Amelanchier florida Lindl. Pacific Service-berry. Fig. 2535. 



Amelanchier florida Lindl. Bot. Reg. 19: pi. 15S9. 1833. 



Amelanchier ovalis var. semiintegrifolia Hook. Fl. Bor. Amer. 1 : 202. 1834. 



Shrub or small tree, 2-5 m. high, with reddish-brown branchlets. Leaves broadly oblong to 

 suborbicular, mostly 3-4 cm. long, subcordate to rounded at the base, obtuse at the apex, coarsely 

 toothed above the middle or rarely subentire, more or less tomentose beneath, glabrous or more 

 or less strigose above, rather thin in texture, bright green above, paler beneath ; petioles, branches 

 of the inflorescence and pedicels often villous-tomentose ; petals oblanceolate-obtuse, 12-15 mm. 

 long ; ovary pubescent at the summit ; fruit dark purple, glabrous or sparsely pubescent. 



In open woods and clearings, mainly Humid Transition Zone; southern Alaska to the coastal region of central 

 California; common in western Oregon and Washington, extending east to Idaho. Type locality: on the banks 

 of the Columbia, near Fort Vancouver, Washington. March-May. 



5. Amelanchier gracilis Heller. Slender Service-berry. Fig. 2536. 



Amelanchier gracilis Heller, Muhlenbergia 2: 59. 1905. 



Amelanchier siskiyouensis Schneider, Handb. Laubholzk. 1: 735. 1906. 



Amelanchier recurvata Abrams, Bull. Torrey Club 37: 151. fig. 1. 1910. 



Shrubs 1-2.5 m. high with erect or ascending usually wand-like branches and grayish bark, 

 the young twigs reddish purple. Leaves oblong-obovate to elliptical, 2-4 cm long, acute to 

 truncate, entire or slightly toothed toward the apex ; racemes few-flowered ; petals 10 mm. long ; 

 styles 4 'or 5 ; ovary more or less tomentose at tip ; sepals triangular-lanceolate, 2 mm. long, re- 

 curved from the base in fruit ; fruit dark purple, glabrous or sparsely tomentose. 



Mountain slopes, Transition and Canadian Zones; Siskiyou Mountains, Oregon, to southern California. 

 Type locality: near Shasta Springs, Siskiyou County, California. April-May. 



6. Amelanchier utahensis Koehne. Utah Service-berry. Fig. 2537. 



Amelanchier utahensis Koehne, Nissensch. Prog. Falk-Realgym. Berlin 95: 25. 1890. 

 Amelanchier alnifolia var. utahensis M. E. Jones, Proc. Calif. Acad. 5: 679. 1895. 



Shrub 1-5 m. high with gray or brownish branches. Leaves 1-3 cm. long, elliptical to oval, 

 acute to rounded at apex, rounded to subcordate at base, coarsely crenate-serrate to near the 

 base pallid finely tomentulose and somewhat canescent on both surfaces ; racemes 2-3 cm. long ; 



