Heteromeles. Horkelia.] ROSACEZ. DBT 
Pursh, 343. Barton, Veg. Mat. Med.1,t.5. Bigelow, Med. Bot. 5. 11, t. 41. 
Cambess. 1. c. 387, t. 17, f. 2 (fl. & fr.). 
Ulmaria trifoliata. Hill, Hort. Kew. 214. 
HETEROMELE® arbutifolia. Roemer, Syn. Monog. 3.105. Decaisne, Mem. 
Fam. Pom. 144, t.9. Brew. & Wats. Bot. Calif. 1. 188. 
Crategus arbutifolia. Poir. in Nouv. Duham. 4. 181; Dict. Suppl. €- Ait. f. 
Hort. Kew. 3. 202. Lodd. Bot. Cab. t. 201. 
Aronia arbutifolia. Nutt. Genera, 1. 306. 
Photinia arbutifolia. Lindl. in Trans. Linn. Soc. 18. 103; Bot. Reg. t. 491, & 
under t. 1956 (Spreng. Neue Entdeck. 3. 169; Regensb. Fl. 6. 169). Spreng. Syst. 
2.508. DC. Prodr. 2.631. Cham. & Schlecht. in Linnea, 2. 542. Don, Mill. 
2. 602. Spach, Hist. Veg. 2. 80. Hook. & Arn. Bot. Beechey, 189 & 340. Torr. 
& Gray, Fl. 1. 473. Dietr. 3. 162. Loud. Arb. 2. 868, £619. Benth. Bot. Sulph. 
14; Pl. Hartw. 307. Torrey, Emory’s Rep. 140; Sitgr. Rep. 159; Pac. R. Rep. 
4.85; Mex. Bound. 64; Bot. Wilkes, 291. Wood, Cl.-Book, 329. Boland. Proce. 
Calif. Acad. 3. 80; Cat. 11. Maximowicz, Bull. Acad. Petersb. 19. 180 (Mélang. 
Biolog. 9. 180). Wenzig, Linnea, 38. 96. 
Mespilus arbutifolia. Link, Enum. Hort. Berol. 2. 36. 
Photinia salicifolia. Presl, Epimel. Bot. 204. Walp. Ann. 3. 858. 
FHeteromeles Fremontiana. Decaisne, Mem. Fam. Pom. 144. 
HORKELIA Bolanderi. Gray, Proc. Am. Acad. 7. 558. Watson, King’s Rep. 
5.448. Regel, Trudi Peterb. 1.152. Brew. & Wats. Bot. Calif. 1. 182. The 
species of the genus are all referred to Potentilla by Benth. & Hook. in Gen. Pl. 
1. 621, & by Baillon, Hist. Pl. 1. 369. 
Var. Parryi. Watson, Bot. Calif. 1. 182. 
H. Californica. Cham. & Schlecht. in Linnea, 2. 26. Don, Mill. 2. 562. Hook. 
& Arn. Bot. Beechey, 189. Torr. & Gray, Fl. 1. 434. Walp. Rep. 2.36. Pres, 
Epimel. Bot. 198. Gray, Proc. Am. Acad. 6.529. Watson, King’s Rep. 5. 447. 
Regel, Trudi Peterb. 1. 151. Torrey, Bot. Wilkes, 288. Brew. & Wats. Bot. 
Calif, 1. 181. 
Sibbaldia Californica. Spreng. Syst. 42. 341. Dietr. 2. 1020. 
H. grandis. Hook. & Arn. Bot. Beechey, 339. 
H. capitata. Torrey, Pac. R. Rep. 4. 84. 
Var. cuneata. Gray, Proc. Am. Acad. 6. 529. 
H. cuneata. Lindl. Bot. Reg. 23, under t. 1997. Hook. & Arn. Bot. Beechey, 
338. Torr. & Gray, Fl. 1.435. Dietr. 2. 1628. Walp. Rep. 2.36. Benth. Pl. 
Hartw. 309. Presl, Epimel. Bot. 198. Torrey, Mex. Bound. 64. Boland. Cat. 10. 
Potentilla multijuga. Lehm. Ind. Sem. Hamb. 1849, Add. 6; Pugil. Pl. Nov. 9. 2; 
Rev. Potent. 29, t. 7. 
Potentilla cuneata. Benth. & Hook. 1. c. Baillon, 1. ec. 
Var. sericea. Gray, Proc. Am. Acad. 6. 529. Brew. & Wats. Bot. Calif. 1. 181. 
H. capitata. Lindl. Bot. Reg. under t. 1997. Hook. & Arn. Bot. Beechey, 338. 
Torr. & Gray, Fl. 1.435. Dietr. 2. 1628. Walp. Rep. 2.36. Gray, Proc. Am. 
Acad, 6. 529. Watson, King’s Rep. 5. 447. Regel, Trudi Peterb. 1. 151. Brew. & 
Wats. Bot. Calif. 1.181. 
H. congesta. Dougl.; Hook. Bot. Mag. t. 2880; FI. Bor.-Am. 1. 196. Don, Mill. 
2. 562. Hook. & Arn. Bot. Beechey, 339. Torr. & Gray, Fl. 1. 434. Eat. & Wr. 
273. Walp. Rep. 2. 36. Gray, Proc. Am. Acad. 6. 529 & 8. 381. Watson, King’s 
Rep. 5. 448. Regel, Trudi Peterb. 1. 153. Torrey, Bot. Wilkes, 288. Brew. & 
Wats. Bot. Calif. 1. 181. 
