A Popular History of British Sea-Weeds

by

Rev. D. Landsborough, A.L.S.

1849

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Fructification of Sea-Weeds I

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Fig. A. Polysiphonia urceolata
Fig. 1. Portion of a branch.
Fig. 2. Capsule moe highly magnified.
Fig. B. Polysiphonia urceolata
Fig. 1. Portion of a branchlet, showing granular fruit (tetraspores).
Fig. 2. Tetraspor, highly magnified.
Fig. C. Ptilota plumosa
Fig. 1. Involucre containing favellae.
Fig. 2. Lacinia with tetraspores on short pedicels.
Fig. D. Plocamium coccineum
Fig. 1. Branchlet with a lateral tubercle containg spores.
Fig. 2. Branchlet with stichidia containing tetraspores.

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