J.L.Gentry, ?Phytologia 26: 276. 1973.?, 1973.

J.L.Gentry, ?Phytologia 26(4) : 276. 1973.?, 1973.

J.L.Gentry, ?Phytologia 26: 274. 1973.?, 1973.

J.L.Gentry, ?Phytologia 26: 273. 1973.?, 1973.

J.L.Gentry, ?Phytologia 26: 269. 1973.?, 1973.

J.L.Gentry, ?Phytologia 26: 267, fig. 1973?, 1973.