The American Naturalist, Volumen21Essex Institute, 1887 |
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Página 607
... species on the hard shell en- casing their nuts or fruits , and , by producing these in enormous numbers , have an excellent chance of perpetuating themselves . All these have , it should be understood , been acquired by plants so they ...
... species on the hard shell en- casing their nuts or fruits , and , by producing these in enormous numbers , have an excellent chance of perpetuating themselves . All these have , it should be understood , been acquired by plants so they ...
Página 608
... species , but is characteristic of most members of the order . The species number over thir- teen hundred , are widely scattered over the world , and are most diversified in form and habit . Some of them are climbers , some creepers ...
... species , but is characteristic of most members of the order . The species number over thir- teen hundred , are widely scattered over the world , and are most diversified in form and habit . Some of them are climbers , some creepers ...
Página 609
... species are produced in large clusters , are pink in color , and have quite a perceptible odor . They are visited by insects in great numbers , as many as thirty- one different species having been counted ; and this fact shows they ...
... species are produced in large clusters , are pink in color , and have quite a perceptible odor . They are visited by insects in great numbers , as many as thirty- one different species having been counted ; and this fact shows they ...
Página 612
... species of the family the coma has the peculiarity of expanding very rapidly on exposure to the air . In one of these ( Gonolobus obliquus ) it is recorded by Mr. Meehan that the expansion of the coma is so rapid as to be compared to a ...
... species of the family the coma has the peculiarity of expanding very rapidly on exposure to the air . In one of these ( Gonolobus obliquus ) it is recorded by Mr. Meehan that the expansion of the coma is so rapid as to be compared to a ...
Página 613
The sixty or more species of Asclepias are , with two exceptions , confined to the American continent , and the amount of milky juice varies in the different species . The acridity of those species which have no milky juice is a ...
The sixty or more species of Asclepias are , with two exceptions , confined to the American continent , and the amount of milky juice varies in the different species . The acridity of those species which have no milky juice is a ...
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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