MYCOLOGICAL NOTES FOR 1920 ‘I7I 
destroyed by a fice that burned the photographic studio where 
the collection was kept at the time. This has necessitated 
designating my herbarium No. 7873, as the type of the species 
rather than No. 7525, from which the photographs were made, 
and which is therefore no longer in existence. This will explain 
any discrepancy that might appear in the failure, in later years, 
to find a collection in my herbarium with the exact aspect 
‘presented in the photographs. 
Fics. 9-14. PoLyporus COMPACTUS Overholts 
9. Small portion of the hymenium showing basidia, cystidia, and attached 
spores. 10. Mature basidiospores. 11. Branched hypha. 12. Chlamydo- 
spores. 13. Production of chlamydospores. 14. Hypha with clamp con- 
Of the collections here cited, only the first and the last named 
show basidia and basidiospores, while all bear the chlamydospore 
condition. 
The real status of the so-called chlamydospore condition has 
not been determined, as no cultures have been attempted. That 
the knob-like growths as shown in PLATE 9 involve this species 
can scarcely be questioned. It has been suggested that these 
growths may represent a diseased condition and that the bodies 
here designated as chlamydospores may be in reality the spores 
