Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature . llate — that is,arranged in a great number of whorls, at eacharticulation of the stem with the branches. TheSigillaria were, on the contrary, great trees consist-ing of a simple trunk, surmounted with a bunch orpanicle of slender leaves, drooping at the extremity,the bark often channelled and preserving impressionsor markings of the old leaves, which, from theirresemblance to a seal {sigilium), gave origin totheir name. The Stigmaria, according to many paleontologists,were Cryptogam
Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature . llate — that is,arranged in a great number of whorls, at eacharticulation of the stem with the branches. TheSigillaria were, on the contrary, great trees consist-ing of a simple trunk, surmounted with a bunch orpanicle of slender leaves, drooping at the extremity,the bark often channelled and preserving impressionsor markings of the old leaves, which, from theirresemblance to a seal {sigilium), gave origin totheir name. The Stigmaria, according to many paleontologists,were Cryptogam ia, of subterranean only know the long roots which carry the repro-ductive organs, which, in some cases, are as muchas sixteen feet long. This was suspected by * London : Chapman & Hall, 193, Piccadilly. 38 SCIENCE-GOSSIP. [Feb. ], 18G6. Brongniart, on botanical grounds, to be the roots ofSigillaria, and recent discoveries have confirmedthis opinion. Sir Charles Lyell, in company withDr. Dawson, examined several erect Sigillaria inthe sea cliffs of the South Joggins, in Nova Scotia,. Fig. 48. Neiiropterisgigantea. and found that, from the lower extremities of thetrunk, they sent out Stigmaria as roots, whichdivided into four parts, and these again threw outeight continuations, aud these again divided intopairs. f
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