S.Knapp, ?Brittonia 44: 64. 1992.?, 1992.

S.Knapp, ?Novon, 2: 348. 1992.?, 1992.

S.Knapp, ?Brittonia 44: 62. 1992.?, 1992.

S.Knapp, ?Novon 2: 346, fig. 6. 1992.?, 1992.

Ochoa, ?Phtyologia 73: 378. 1992.?, 1992.

S.Knapp, ?Brittonia 44: 65. 1992.?, 1992.

Agra, ?Novon 2: 179. 1992.?, 1992.

S. Z. L. & W.Q.Wang, ?Fl. Liaoningica 2: 1158. 1992.?, 1992.

S.Knapp, ?Brittonia 44: 61. 1992.?, 1992.

S.Knapp, ?Novon 2: 344. 1992.?, 1992.

S.Knapp, ?Novon 2: 343. 1992.?, 1992.

S.Knapp, ?Brittonia 44: 67. 1992.?, 1992.

S.Knapp and S.Knapp, ?Bull. Brit. Mus. (Nat. Hist.) , Bot. 22: 147. 1992.?, 1992.

S.Knapp, ?Novon 2: 341. 1992.?, 1992.

(H. ) Ochoa, ?Phytologia 73: 167. 1992.?, 1992.

(R. ) K. & Gandhi, ?Phytologia 72: 89. 1992?, 1992.

(H. ) D. A. Z. & Y.Zhang and Y.Zhang, (G. L. ) D. A. Z. & &, ?Novon 2(2): 127 (1992):.?, 1992.

(D. ) S.Z.Liu, ?in Fl. Liaoningica, 2: 253 (1992):.?, 1992.

(C. V. M. ) H. & Barboza, ?Darwiniana 31: 29. 1992?, 1992.

(N. ) D. A. Z. & Y.Zhang, ?Novon 2: 126. 1992?, 1992.

(B. L. R. G. )& DArcy and Davis, M. & Tilton, ?Novon 2: 190. 1992?, 1992.

(D. ) Mione, ?Novon 2: 383. 1992?, 1992.

(R. P. )& Mione, ?Novon 2(4): 383 (1992):.?, 1992.

(B. ) Axelius, ?Int. J. Pl. Sci. 153: 498. 1992?, 1992.

B. & M.Martínez, ?Phytologia 73: 270, fig. 1. 1992?, 1992.

(C. Y. W. C. C. ) D. A. Z. & & Y.Zhang, ?Novon 2(2): 126 (1992):.?, 1992.

Raf. and Raf., ?Bull. Mus. Natl. Hist. Nat., B, Adansonia Sér. 4, 14(1): 8. 1992?, 1992.