PHYSIOLOGY AND MORPHOLOGY OF CALIFORNIA HEPATIC/E 47 



13. Spores of Fossoinbronia longiscta sown in Knop's solution 

 and in impure distilled water germinated in the former within 

 fourteen days and in the latter within twelve days after removal 

 from the capsule. Spores sown on sterilized soil show no evi- 

 dence of germination after sixty-two days. 



14. The spores of Fcgatella conica, Aneura pingtiis, Porella 

 bolanderi and Radnia comflanata were found incapable of 

 withstanding prolonged desiccation. Germination occurs nor- 

 mally within the capsule or very soon after dispersal. 



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