Prunus.] ROSACEA. | 307 
P. cuneata. Raf. Ann. Nat. 11. 
P. incana. Schweinitz, Long’s Exped. 2, Appx. 113. 
Cerasus Susquehanne. Eat. & Wr. 189. 
Cerasus depressa. Seringe, DC. Prodr. 2. 538. Hook. Fl. Bor.-Am. 1.168. Don, 
Mill. 2.514. Beck, Bot. 96. Eat. & Wr. 189. Loud. Arb. 2. 704. Roem. Syn. 
Monog. 3. 58. 
P. rivularis. Scheele, Linnea, 21. 594; Roem. Texas, 4.30. Gray, Pl. Lindh. 
186; Pl. Wright, 1. 67; Hall’s Pl. Texas, 9. Walp. Ann. 2. 465. 
P. Texana. Scheele, Linnea, 21. 593. y 
P. serotina. Ehrh. Beitr. 3.20. Willd. Arb. 239, t. 5, f. 2; Spec. 2.986. Per- 
soon, 2. 34. Ait. f. Hort. Kew. 3.196. Guimp. Otto & Hayne, t.37. Spreng. 
Syst. 2.478. Nees, Pl. Neuwied, 9. Emerson, Trees of Mass. 2 ed. 2. 515, t. 
Engelm. Pl. Upp. Miss. 190. Curtis, Bot. N. Car. 56. Hook. f. Arct. Pl. 327. 
Lesqx. Fl. Ark. 358. Chapman, 120. Gray, Manual, 149; Hall’s Pl. Texas, 9. 
Torrey, Bot. Wilkes, 284. Brew. & Wats. Bot. Calif. 167. 
P. Virginiana. Mill. Dict., not Linn. DuRoi, Obs. Bot. 12; Harbk. 2. 191. 
Wangenh. Amer. t. 14, f. 33. Medicus, Bot. Beobacht. 1782, 345. Marsh. Arbust. 
112. Walter, 146. Ait. Hort. Kew. 2. 163. Poir. Dict. 5. 664. Pursh, 329. Bigel. 
Fl. Bost. 118. Elliott, 1.540. Torrey, Fl. U. S. 467. 
@ Padus oblonga. Moench, Meth. 671. 
Cerasus Virginiana. Michx. Fl. 1. 285. Michx. f. Arbr. Am. 3. 151,t.6. Hook. 
Fl. Bor.-Am. 1. 169, excl. syn. Don, Mill. 2.515. Beck, Bot. 97. Darling. FI. 
Cestr. 289. Loud. Arb. 2. 710, f. 418. 
Cerasus serotina. Loisel. in Nouv. Duham. 5.3.  Seringe, DC. Prodr. 2. 540. 
Spach, Hist. Veg. 1.416. Torr. & Gray, Fl. 1.410. Eat. & Wr. 189. Torrey, 
Fl. N. Y. 1. 196; Pac. R. Rep. 7. 11. Loud. Arb. 2. 712, t.118 & f. 419. Emerson, 
Trees of Mass. 455. Gray, Manual, 1 ed. 115; Pl. Lindh. 186. Richard. Arct. 
Exp. 425. Bolander, Proc. Calif. Acad. 3. 79. 
P. cartilaginea. Lehm. Ind. Sem. Hamb. 1833 (Litt.-Ber. zu Linnea, 10. 76). 
Padus serotina. Agardh, Theor. Syst. t. 14, f. 8 (fr.). 
Padus Virginiana & cartilaginea. Roem. Syn. Monog. 3. 86. 
P. spinosa, Linn. Pursh, 333. Hook. Fl. Bor.-Am. 1. 167. Beck, Bot. 95. Torr. 
& Gray, Fl. 1. 408. Curtis, Bot. N. Car. 56. Gray, Manual, 148. 
Var. rnsiriTrA. Gray, Manual, 148. 
P. insititia, Linn. Emerson, Trees of Mass. 450. Gray, Manual, 1 ed. 115. 
Wood, Cl.-Book, 328. 
P. subcordata. Benth. Pl. Hartw. 308. Torrey, Pac. R. Rep. 4. 82; Mex. 
Bound. 63. Newberry, Pac. R. Rep. 6. 73. Brew. & Wats. Bot. Calif. 1. 167. 
P. umbellata. Elliott, 1.541. Dietr. 3.44. Chapman, 119. Wood, Cl.-Book, 
328; Bot. & Fl. 102. 
P. pumila. Walter, 146. 
Cerasus umbellata. Torr. & Gray, Fl.1. 409. Eat. & Wr. 190. Roem. Syn. 
Monog. 3. 78. 
P. Virginiana. Linn. Spec. 473, excl. syn. Willd. Spec. 2. 985. Persoon, 2. 34. 
Guimp. Otto & Hayne, t. 36. Spreng. Syst. 2.478. Dietr. 3. 42. Emerson, Trees 
of Mass. 2 ed. 2. 518, t. Torrey, Mex. Bound. 62. Hook. f. Arct. Pl. 290. Chap- 
man, 120. Gray, Am. Journ. Sci. 2. 33. 411; Manual, 148. Challis, in Am. Nat- 
uralist, 2. 324. Watson, King’s Rep. 5. 80. Porter, Fl. Col. 33. Brew. & Wats. 
Bot. Calif. 1. 167. 
P. Canadensis. Marshall, Arbust. 113. 
