292 ROSACEZ. [Pirus. 
Aronia melanocarpa. Elliott, 1. 557. Nutt. Genera, 1. 306. Spach, Hist. Veg. 
2.90. Roem. Syn. Monog. 3.161. Decaisne, Mem. Pom. 137. 
Aronia arbutifolia, var. melanocarpa. Torrey, Fl. U. 8. 479. 
P. grandifolia. Lindl. Bot. Reg. 14, t. 1154; Trans. Hort. Soc. 7. 233 (Litt.-Ber. 
l.c.). Don, Mill. 2.649. Walp. Rep. 2. 54. Loud. Arb. 2. 928. 
P. pubens. Lindl. 1. c. 7. 252, and same citations. 
Aronia grandifolia, pubens & glabrescens. Spach, Hist. Veg.2.91. Roem. 1. c. 
Decaisne, 1. e. 
Aronia pumila. Roem. Syn. Monog. 3. 161. 
Sorbus arbutifolia, var. melanocarpa. Wenzig, Linnza, 38. 67. 
Var. macrophylla. Hook. Comp. Bot. Mag. 1. 25. 
P. coronaria. Linn. Spec. 480. Marsh. Arbust. 118. Ait. Hort. Kew. 2. 176. 
Willd. Arb. 265; Sp. 2. 1019; Enum. 527. Persoon, 2. 40. Pursh, 340. Sims, Bot. 
Mag. t. 2009. Elliott, 1. 559. Ker, Bot. Reg. 8, t.651. James, Long’s Exped. 
1.317. Spreng. Syst. 2.510. DC. Prodr. 2. 635. Don, Mill. 2. 647. Beck, Bot. 
115. Hook. Comp. Bot. Mag. 1.25. Reichenb. Fl. Exot. t. 240. Torr. & Gray, 
Fl. 1.470. Eat. & Wr. 382. Torrey, Fl. N. Y. 1. 223. Dietr. 3.154. Loud. Arb. 
2. 908, t. 176. Richard. Arct. Exped. 428. Parry, Pl. Minn. 612. Curtis, Bot. N. 
Car. 69. Chapman, 128. Gray, Manual, 161. Wenzig, Linnea, 38. 40, excl. var. 
Macoun & Gibson, Trans. Bot. Soc. Edinb. 12. 325. 
Malus coronaria. Mill.; Moench, Meth. 682. Michx. Fl. 1. 292.  Poir. Dict. 
5. 562. Nouv. Duham. 6, t. 44,f1. Michx. f. Arbr. Am. 3. 65,t.10. Spach, 
Hist. Veg. 2. 136, t. 8. Roem. Syn. Monog. 3.191. Decaisne, Mem. Pom. 144. 
P. rivularis. Dougl.; Hook. Fl. 1. 203, t. 68. Don, Mill. 2. 647. Torr. & 
Gray, Fl. 1.471. Eat. & Wr. 383. Walp. Rep. 2.53. Dietr. 3.154. Ledeb. Fl. 
Ross. 2.99. Nutt. Sylva, 2. 22,t.49. Richard. Arct. Exped. 428. Torrey, Pac. 
R. Rep. 4. 85; Bot. Wilkes, 292. Newberry, Pac. R. Rep. 6.73. Cooper, same, 
12.29 & 60. Regel, Ind. Sem. h. Petrop. 1858, 51. Rothr. Fl. Alask. 485 & 446. 
Boland. Cat. 11. Gray, Proc. Am. Acad. 8. 382. Wenzig, Linnea, 38. 38. 
Brew. & Wats. Bot. Calif. 1. 188. 
P. diversifolia. Bongard, Veg. Sitch. 133 (Presl, Repert. Bot. 1. 313). 
P. fusca. Raf. Med. Bot. 2. 254. 
P. subcordata. Wedeb. FI. Ross. 2. 95. 
Malus rivularis & diversifolia. Roem. 1. c. 3.215. Decaisne, Mem. Pom. 155. 
Malus subcordata. Roem. 1. e. 192. 
P. sambucifolia. Cham. & Schlecht. in Linnea, 2. 36. Bongard, Veg. Sitch. 154. 
Don, Mill. 2.648. Torr. & Gray, Fl. 1.472. Walp. Rep. 2.53. Dietr. 3. 155. 
Ledeb. Fl. Ross. 2.99. Trautv. & Meyer, Fl. Ochot. 37. Maximowicz, Prim. FI. 
Amur. 103. Rothr. Fl. Alask. 446. Cooper, Am. Naturalist, 8. 406 (as /raxini- 
folia 4). Gray, Manual, 161; Proc. Am. Acad. 8. 382. Porter, Hayd. Rep. 1870, 
475; Fl. Col. 38. Watson, King’s Rep. 5. 92. Brew. & Wats. Bot. Calif. 1. 189. 
Sorbus Aucuparia, var. 3. Michx. Fl. 1. 290. 
Sorbus Aucuparia. Schrank, Pfl. Lab. 25. 
P. Americana. Richard. Frankl. Journ. 23% Newberry, Pac. R. Rep. 6. 73. 
Cooper, same, 12. 60. Torrey, Bot. Wilkes, 292. 
P. Aucuparia. Meyer, Pl). Lab. 81. Schlecht. in Linnea, 10. 99. Pl. Bourgeau, 
256 & 263. Hook. f. Arct. Pl. 290 & 527, in part. 
Sorbus sambucifolia. Roem. Syn. Monog. 3. 139. | Maximowicz, in Bull. Acad. 
Petersb. 19. 174 (Mélang. Biol. 9. 172). Wenzig, Linnea, 38. 73. Decaisne, Mem. 
Pom. 159. 
Sorbus Sitchensis. Roem. 1. c. 
