Book ID: 49185
Phalaeonopsis and Doritis Hybrids
Their Parentage and Progeny.Ed. by Penn Valley Orchids. 1992. 647 p. 4to. Hardcover.
A one table list of all hybrids of these genera and with other genera with which they breed registered from 1856 to present along with their parents and progeny in one volume. Easy to use.