. [A biological survey of the waters of Woods Hole and vicinity. Marine animals; Marine plants. BIOI^OGICAIv SURVEY OF WOODS HOLE AND VICINITY. 541. ' 26-^'46 -•?' / Pyramid Rock Chart 271.—Distribution of algse on Spindle Rocks, July 22, 1905. The only conspicuous green alga was Ulva Lactuca var. rigida (5), now full growii and forming large patches on some of the rocks. There was a very well-defined brown zone just below low-water mark (the dotted line) composed of Chordaria flagelliforviis (28) and old Scytosiphon lomentarius (26). Ecto- carpus confervoides (14) was plentiful on the Chordar
. [A biological survey of the waters of Woods Hole and vicinity. Marine animals; Marine plants. BIOI^OGICAIv SURVEY OF WOODS HOLE AND VICINITY. 541. ' 26-^'46 -•?' / Pyramid Rock Chart 271.—Distribution of algse on Spindle Rocks, July 22, 1905. The only conspicuous green alga was Ulva Lactuca var. rigida (5), now full growii and forming large patches on some of the rocks. There was a very well-defined brown zone just below low-water mark (the dotted line) composed of Chordaria flagelliforviis (28) and old Scytosiphon lomentarius (26). Ecto- carpus confervoides (14) was plentiful on the Chordaria and Scytosiphon. Phyllitisfascia had disappeared. Nemalion multifidum (40) fringed most of the rocks at low-water mark, and below was a characteristic red zone of Polysiphonia violacea (48) and Ccramium rubrum (43) mixed with the Chordaria, and with Chon- drus crispus (49) abundant from 1-5 feet below low water. List of alga:: Calolhrix scopulorum, i, small patches on barnacles and rocks; Rivtilaria atra, 2, on barnacles; Ulolhrix implexa, 3, on Pyramid Rock; Ulva Lactuca var. rigida, 5, abundant on tops of rocks; Enteromorpha inlestinalis, 7, few patches; Cladophora gracilis, 9, few tufts; Codiolum gregarium, 12, on barnacles; Ectocarpus confervoides, 14, abundant on Chordaria and Scytosiphon; Scytosiphon lomentarius, 26, much old growth; Chordaria flagelliformis, 28, abundant; Mcsogloia divaricata, 29, few patches; Chorda filum, 31, large patches; Laminaria Agardhii, ^t,, few groups; Fucus vesiculosus, 35, ^ew plants; Nemalion multifidum, 40, abundant; rubrum, 43, abundant; Chondria dasyphylla, 44, few plants; Polysiphonia violacea, 48, abundant; Chondrus crispus, 49, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Sumner, Francis Bertody, 1874-; Osburn, Raymond C. (Raymond Carr
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmarineanimals, bookye
