On New Plants From the Erian And Carboniferous And On the Characters And Affini
On New Plants From the Erian And Carboniferous And On the Characters And Affini
John William Dawson
The book On New Plants From the Erian And Carboniferous And On the Characters And Affini was written by author John William Dawson Here you can read free online of On New Plants From the Erian And Carboniferous And On the Characters And Affini book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is On New Plants From the Erian And Carboniferous And On the Characters And Affini a good or bad book?
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They have apparently three nerves, but the lateral ones may be resin-vessels. Mr. Bain also finds at St. Peter's Island, with the bran- ches and leaves of Tylodendron, the fruits or seeds represen- ted in Fig. 6. They appear to be wedge-shaped and in fours, and an involucre similar to that in Fig. C. Accompa- nies them, and is supposed to have oelonged to them, or possibly to male flowers of the same species. Neither of these organs have been found actually attached to the bran- ches. If these ...fruits belong to Tylodendron they would in- dicate taxine affinities, and they somewhat resemble the curious coniferous fruits from the Tertiary of Australia known as Spondylostrobus. FIG. 6. Fruit and bracts of Tylodendron. (a) Fruit- (6) single seed, (c) bracts. (Drawn by Mr. Bain. ) Stems having the markings of Tylodendron occur in the Permo-Carboniferous of Cape John in Nova Scotia, and at that place there are also obscure Yoltzia-like leaves some- what resembling those of the Prince Edward Island specimens.
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