The American Naturalist, Volumen21Essex Institute, 1887 |
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Página 610
... united into masses 我 FIG . 4. - Pollen - masses of Asclepias hanging by twisted appendages and fastened to the gland above . 19 P- -P FIG . 5. - Flower with hoods cut away , showing ovaries ( o ) , the pollinia ( p ) , and the slit or ...
... united into masses 我 FIG . 4. - Pollen - masses of Asclepias hanging by twisted appendages and fastened to the gland above . 19 P- -P FIG . 5. - Flower with hoods cut away , showing ovaries ( o ) , the pollinia ( p ) , and the slit or ...
Página 614
... united in clusters and enclosed in pouches , five in number . The glutinous , dark - colored disks of the pollinia are the only parts of the sta- mens visible in an open flower . If an insect , attracted by the fragrance , alights on a ...
... united in clusters and enclosed in pouches , five in number . The glutinous , dark - colored disks of the pollinia are the only parts of the sta- mens visible in an open flower . If an insect , attracted by the fragrance , alights on a ...
Página 644
... United States Geological Survey , has entered a protest against the adoption of the system of colors generally in use , and has endeavored to secure the adoption of one of his own devising . The following is an extract from a letter ...
... United States Geological Survey , has entered a protest against the adoption of the system of colors generally in use , and has endeavored to secure the adoption of one of his own devising . The following is an extract from a letter ...
Página 646
... United States , the other by Charles C. Royce on the relations of the Cherokees to the colonial governments , -but were postponed to the next volume from lack of room . The first of the papers now before us is confessedly a preliminary ...
... United States , the other by Charles C. Royce on the relations of the Cherokees to the colonial governments , -but were postponed to the next volume from lack of room . The first of the papers now before us is confessedly a preliminary ...
Página 651
... United States possesses the highest peak on the North American continent . ALASKA GLACIERS . - The country that intervenes between the St. Elias Alps and the sea , from Cross Sound to the Copper River ( Alaska ) , with the exception of ...
... United States possesses the highest peak on the North American continent . ALASKA GLACIERS . - The country that intervenes between the St. Elias Alps and the sea , from Cross Sound to the Copper River ( Alaska ) , with the exception of ...
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Términos y frases comunes
Amer AMERICAN NATURALIST animals appear Artiodactyla Bering Island bones botany breed called cells character chemical color compounds conclusions Condylarthra contains crystals cusps described dike E. D. Cope Eocene evolution eyes facts fauna feet figures fossils four Gard genera genus geological geologists geology Göhrde groups Heptodon hornblende hornless stags horns hundred Hyracotherium Ichthyosaurus incisors inferior molar infra-spinous insects Island J. B. LIPPINCOTT COMPANY known Lambdotherium larvæ lower Menodus mineral Miocene molars natural North notes observed occur original paper Philadelphia plane plants plates polled cattle pollinia portion premolars present probably Proc Prof Professor Protohippus published recently region represented River rocks sandstone says scapular scapular index schists scientific sea-cow sections seen side skull species specimens Spiders structure student superior molars synonymy Taconic teeth tion varieties Vilmorin XXI.-NO