50 



of ledges and earth and trees yielded the following species. 

 P. speciosa, rather common on this limestone region; P. Caesia, 

 hypoleuca, tribacea, stellaris, varieties radia and rosulata; P. 

 aquila detonsa; obscura, and lithotea. 



Other lichens found were the tiny, bright yellow Candelaria 

 concolor, the gelatinous brown Collema pulposum, Cladonia 

 furcata, C. mitrula, C. coniocraea, the ubiquitous C. cristatella; 

 C. chlorophora, forms simplex, carphophora and pterygota; Solo- 

 rina saccata was not found, the site where Mrs. Anderson had 

 previously seen it being now occupied by a new camp. Interest- 

 ing crustose lichens were Lecidea Russellii, and Candelariella 

 vitellina. Dermatocarpon miniatum was occasional on wet lime- 

 stone. The territory examined is close to a fault line at the bor- 

 der of the limestone and the gneiss, and it was noticeable that 

 the limestone area was richer in lichens than the gneiss a few 

 hundred yards east. Then, too, the limestone bore characteris- 

 tic ferns, Camptosorus rhizophyllus, Pellaea atropurpurea, and 

 Asplenium Ruta-muraria, which were absent from the pre- 

 Cambrian rocks eastward. 



Raymond H. Torrey 



Palisades in Vicinity of George Washington Bridge 

 Sunday, March 12, 1933 



The unusually cold weather during the ten days immediately 

 preceding this walk was discouraging to early blossoms. On 

 March 11th the temperature (15°) was the lowest on record for 

 that date. Ponds and pools were covered with ice. Stellaria 

 media, in a cranny of the rocks of the Palisades, was the only 

 plant found in blossom. Trees and shrubs, therefore, engaged 

 most of our attention. Among those examined, besides the vari- 

 ous species of oaks, were Cornns florida, Viburnum prunifolium, 

 Fraxinus americana, Celtis occidentalis , Carya ovata, Carya alba, 

 Carpinus caroliniana, and Liquidambar Styraciflua. The last was 

 especially abundant on the top of the cliffs north of the bridge. 

 In the same locality were found many egg cases of the praying 

 mantis. 



Dried fruits or seed capsules of Ailanthus glandulosa, Robinia 

 Pseudo- Acacia, Paulownia tomentosa, Clethra alnifolia, Ver- 

 bascum Thapsus, Verbascum Blattaria and Cuscuta Gronovii 

 were collected. Among the rocks near the river were found 

 Spirogyra and Fucus. 



Six members and eleven guests were present. 



Ethel Savacool 



