A.Gray, ?Proc. Amer. Acad. Arts 11: 90. 1876.?, 1876.

A.Gray, ?Proc. Amer. Acad. Arts 11: 91. 1876.?, 1876.

A.Gray, ?Syn. Fl. 2(1) : 227. 1878.?, 1878.

A.Gray, ?Proc. Amer. Acad. Arts 6: 44. 1862.?, 1862.

A.Gray, ?Proc. Amer. Acad. Arts 22: 441. 1887.?, 1887.

A.Gray, ?Proc. Amer. Acad. Arts 6: 43. 1866.?, 1866.

A.Gray, ?Syn. Fl. N. Amer. 2, 1: 233. 1878.?, 1878.

A.Gray, ?Amer. J. Sci. Arts ser. 2, 22: 285. 1856.?, 1856.

A.Gray, A.Gray,, and A.Gray, ?Proc. Amer. Acad. Arts 10: 62. 1874?.

A.Gray, ?Syn. Fl. N. Amer., ed.  2. 2(1): 231 (-232). 1886 [Jan 1886]?, 1886.

A.Gray, ?Proc. Amer. Acad. Arts 10: 63. 1875?.

A.Gray, ?Manual (Gray) 354. 1848?, 1848.

A.Gray, ?Proc. Amer. Acad. Arts 21: 402. 1886?, 1886.

A.Gray, ?Syn. Fl. N. Amer., ed.  2. 2(1): 235. 1886?, 1886.

A.Gray and A.Gray, ?Proc. Amer. Acad. Arts 10: 68. 1874?, 1874.

A.Gray and A.Gray, ?Proc. Amer. Acad. Arts 10: 65. 1874?, 1874.

A.Gray, A.Gray,, and A.Gray, ?Proc. Amer. Acad. Arts 10: 65. 1875?.

A.Gray, ?Syn. Fl. N. Amer. 2(1): 395. 1878?, 1878.

A.Gray and ex A.Gray, (D. D. C. ), ?Proc. Amer. Acad. Arts 10: 66. 1874?, 1874.

A.Gray, ?Proc. Amer. Acad. Arts 6: 49. 1862?.

A.Gray, ?Proc. Amer. Acad. Arts 6: 48. 1896.?, 1896.

A.Gray, ?Proc. Amer. Acad. Arts 5: 166. 1862.?.

A.Gray and A.Gray, ?Syn. Fl. N. Amer. 2(1): 242. 1878 [May 1878]?, 1878.

A.Gray, ?Syn. Fl. N. Amer. 2(1): 243. 1878?, 1878.

A.Gray, ?Proc. Amer. Acad. Arts 19: 91. 1883?.

A.Gray, ?Proc. Amer. Acad. Arts 6: 47. 1866. partim.?.

A.Gray, ?Syn. Fl. N. Amer. 2(1): 238. 1878?, 1878.

A.Gray, ?Proc. Amer. Acad. Arts 22: 311. 1887?, 1887.

A.Gray, ?Proc. Amer. Acad. Arts 6: 47. 1866?.

A.Gray, ?Proc. Amer. Acad. Arts 6: 44. 1862?.

A.Gray, ?Proc. Amer. Acad. Arts 8: 292. 1870?.

A.Gray and A.Gray, ?Proc. Amer. Acad. Arts 6: 48. 1862?.

A.Gray, A.Gray,, A.Gray,, and A.Gray, ?Proc. Amer. Acad. Arts 6: 46. 1862?.

A.Gray, ?Proc. Amer. Acad. Arts 6: 47. 1862?, 1862.

A.Gray, ?Proc. Amer. Acad. Arts 12: 81. 1877?.

A.Gray, A.Gray,, and A.Gray, ?Proc. Amer. Acad. Arts 20: 305. 1885?.

A.Gray and A.Gray, ?Syn. Fl. N. Amer., ed.  2. 2(1): 437. 1886?, 1886.

A.Gray and A.Gray, ?Proc. Amer. Acad. Arts 7: 388. 1868?.

A.Gray, ?Proc. Amer. Acad. Arts 12: 165. 1877 [May 1877]?, 1877.

A.Gray, ?Proc. Amer. Acad. Arts 12: 164. 1877?.

A.Gray, ?Synop. Fl. N. Amer. 2(1): 232. 1878.?, 1878.