Plant Jewels of the High Country - Sempervivums and Sedums by Helen Payne 1972

Time Life Foliage Houseplants

The Complete Book of Garden Magic by Roy Biles 1942
this book covers every topic in gardening

Curiosities of the Plant Kingdom by Reinhardt Hohn 1980
lots of pix b+w and color of very unusual plants

Brooklyn Botanic Garden Handbooks, softcover from 1975 thru 1978 printings, black and white cover versions;
Conifers
Orchids
Dwarf Conifers
Propagation

Looking for books on iris, and iris rhizomes

Let me know what you have.