. Introduction to cryptogamic botany. Cryptogams. Fig, 108. Dawsonia superba. a. Spiral structure of lining of external cells of stem. 5. Teeth of peristome. Fig. 109. Cyathophorum pennatum. Portion of the stem magni- fied, to show the origin of the pleurocarpous fruit. below, has the border frequently divided, more or less regu- larly, into sixteen often bifid teeth. Leptostomiim is essen- tially a genus of the southern hemisphere, New Zealand and Tasmania being its head quarters. L. splachnoides is found in Chili, and one ascends as high as the Organ Mountains of BrazU. 20. Bryei, Br. &
. Introduction to cryptogamic botany. Cryptogams. Fig, 108. Dawsonia superba. a. Spiral structure of lining of external cells of stem. 5. Teeth of peristome. Fig. 109. Cyathophorum pennatum. Portion of the stem magni- fied, to show the origin of the pleurocarpous fruit. below, has the border frequently divided, more or less regu- larly, into sixteen often bifid teeth. Leptostomiim is essen- tially a genus of the southern hemisphere, New Zealand and Tasmania being its head quarters. L. splachnoides is found in Chili, and one ascends as high as the Organ Mountains of BrazU. 20. Bryei, Br. & Sc, Mont. Sporangium erect or cernuous, smooth or striate, cylindrical, pyriform, or urceolate ; peristome double ; calyptra dimidiate ; leaves mostly margined and toothed, composed of rhom- boidal cells. 544. This is a very important tribe, distinguished by the loose reticulation of the margined leaves, the regular sporangia, and the highly developed double peristome. The sporangia are for the most part cernuous, but this is by no means a. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Berkeley, M. J. (Miles Joseph), 1803-1889. London, New York, H. Bailliere; [etc. ,etc]
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