Proceedings of the American Academy of Arts and Sciences, 20권American Academy of Arts and Sciences., 1885 |
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10 페이지
... lateral flowers short , mostly shorter than the calyx : filaments filiform - subulate . Petals pale rose - color . Petals white . S. eriophora . S. Virginiensis . Calyx reflexed in or after anthesis , almost free : pedicels all slender ...
... lateral flowers short , mostly shorter than the calyx : filaments filiform - subulate . Petals pale rose - color . Petals white . S. eriophora . S. Virginiensis . Calyx reflexed in or after anthesis , almost free : pedicels all slender ...
14 페이지
... lateral constriction . A. rotundatus Scudder ( Illinois ) , A. subovalis Woodward ( England ) , A. silesiacus Roemer ( Silesia ) . ANTHRACOMARTUS Karsch . Cephalothorax and abdomen distinctly separated by a lateral con- striction . A ...
... lateral constriction . A. rotundatus Scudder ( Illinois ) , A. subovalis Woodward ( England ) , A. silesiacus Roemer ( Silesia ) . ANTHRACOMARTUS Karsch . Cephalothorax and abdomen distinctly separated by a lateral con- striction . A ...
16 페이지
... lateral ridge on each side converging toward the anus , the surface moderately smooth ; segments seven to nine in number , the basal ones visible below , though often extremely shortened in the middle ; no abdominal appendages ...
... lateral ridge on each side converging toward the anus , the surface moderately smooth ; segments seven to nine in number , the basal ones visible below , though often extremely shortened in the middle ; no abdominal appendages ...
17 페이지
... lateral con- striction . Coxæ radiating from a central pit . Abdomen oval , com- posed of nine segments , of which those on the basal half are very much shorter than the others , and on the dorsal surface are forced still more closely ...
... lateral con- striction . Coxæ radiating from a central pit . Abdomen oval , com- posed of nine segments , of which those on the basal half are very much shorter than the others , and on the dorsal surface are forced still more closely ...
18 페이지
... lateral plates . Dorsum of abdomen broken by oblique sutures , crossing each segment laterally subparallel to the lateral margin , into a median and lateral fields , of which the median is about as large as the combined lateral fields ...
... lateral plates . Dorsum of abdomen broken by oblique sutures , crossing each segment laterally subparallel to the lateral margin , into a median and lateral fields , of which the median is about as large as the combined lateral fields ...
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Abdomen abdominal appendages Acad acetic acetic acid acid acute Antennæ anthracene appears areola Astacus Barrande base Bentham blastodisc blastomeres border Boston bracts branches broad California calyx Cambarus Cambridge carapace cells Cephalothorax cervical groove chela ciliate cleavage cleavage-plane collected corolla difference of potential Dikelocephalus dorsal Emmons entoderm Eritrichium faune feet flowers foliis fossils fruit genera genus glabrous Graptolites Gray gynobasi Hagen inches long lateral leaflets leaves length less limestone lines long lobes longis Magn male margin maxillipeds median Mountains nearly nuclei Nuculæ nutlets oblong observations Olenus ovum pair of legs papillæ Paradoxides pedicels periblast petioles plate Point Lévis posterior Potsdam precipitate Primordial fauna Proc pubescent punctate ring River rostrum sæpius sandstone schists second fauna segment sepals short side Silurian slates slender somites species specimens spermogonia spines stars superficial tension surface Taconic system telson third tion Trilobites tube upper ventral