CRYPTOMORPHA, A NEW SECTION OF SAXIFRAGA 
Arthur Monrad Johnson 
(Received for publication September 29, 1922) 
While pursuing some studies on the section Boraphila Engler, of the 
genus Saxifraga, the writer (4) found that the flower of Saxifraga eriophora 
S. Watson showed some important differences in structure as compared with 
the other species of this section. With better material at hand, kindly 
loaned by the Herbarium of the University of California, it has been possible 
to make a more thorough analysis of the flower of this species, with the 
result that the writer here undertakes to make it the basis of a new section. 
Fig. 1. A, Semidiagrammatic vertical section of the flower of Saxifraga eriophora 
S. Watson. B, Cross-section of the ovaries in situ , in the region of the gland, showing 
placentation and ovules, and glands surrounding ovaries; gl, gland. C, Semidiagrammatic 
aspect of a young flower, the stamens and petals removed. D, Lateral aspect of a single 
carpel, with parts of the flower cut away to show the gland. E , A mature seed. F, An 
anther, some time after shedding of pollen. G, A single segment of the calyx with part of 
the calyx-tube (hypanthium), showing nervation and the insertion of a stamen. H.a and 
Ii.b, Various types of hairs. 
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