The book Plants; a Text-Book of Botany was written by author John Merle Coulter Here you can read free online of Plants; a Text-Book of Botany book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Plants; a Text-Book of Botany a good or bad book?
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The sporangia are eusporangiate in origin, and as the spores are all alike, Lycopodium has the same homosporous-eusporan- giate combination noted in Equisetales and in one of the groups of Filicales. 89. Selaginella. — This large genus contains the smaller, more delicate Club-mosses, often being called the " little Club-mosses.^^ They are especially displayed in the trop- Fio. 188. Selaginella, showing general spray-like habit, and dangling leafless stems which strike root {rhizop^ores).— From ..."Plant Relations.*' ics, and are common in greenhouses as delicate, mossy, decorative plants (Fig. 138). In general the sporophylls are not different from the ordinary leaves (Fig. 139), but sometimes they are modified, though not so distinct as in certain species of Lycopodium, Digitized by Googk THE GREAT GROUPS OF PTERIDOPHYTES 1^5 The solitary sporangium appears in the axils (upper angles formed by the leaves with the stem) of the leaves and sporophylls, but arise from the stem instead of the Fio.
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