Contributions from the Bolus Herbarium, No. 8, Parts 1 and 2. Based on the author’s Ph.D. thesis, and submitted to the University of Cape Town in 1974. Includes important keys and descriptions of species of crassula. A classical technical revision including 10 new sections and subsections and 9 new name combinations. 7 pages of b/w pen & ink drawings total. 595 pages (330 pages for Part 1, and 265 pages for Part 2) total. 7” x 8-3/4”. Softbound. Scarce. Originally sold for $45.00/set. OUR SPECIAL PRICE for a limited time is ………(#20125)……$24.95/2-volume set.