The British species of angiocarpous lichens, elucidated by their sporidia / by W.A. Leighton.

  • Leighton, W. A. (William Allport), 1805-1889.
Date:
1851
Catalogue details

Licence: Public Domain Mark

Credit: The British species of angiocarpous lichens, elucidated by their sporidia / by W.A. Leighton. Source: Wellcome Collection.

    94/196 (page 84)
    Plate IX. 1. Chiodecton alhidum. (p. 25.) a. Apothecium as seen from above, showing the false border to the discs, formed by the substance of the thallodal wart, subsequently disapjjearing. h. Apothecium older, the false border having disappeared, c. c. Horizontal sections of apothecia, showing the form of the divisions of the torus. 2. Chiodecton myrticola, Fee. (p. 25.) a. Apothecium as seen from above. 5. Horizontal section of apothecium, showing the form of the divisions of the torus. 3. Pertusaria communis, De C. (p. 27.) A. Section of thallus and apothecia. a. Cortical layer, i. Me- dullai'y layer, c. Apothecia. d. Receptacle, e. Nucleus, consisting of asci and paraphyses. b. Sporidia. c. Ascus with spcnndia enclosed. 4. Perhcsaria ceuthocarpa,l!:\]'m. andBoRn. (p. 28.) A. Vertical section of thallus and apothecia. b. Sporidia. Plate X. 1. Pertusaria ceuthocarpa. Turn, and Borr. ; from Pigeon Island, (p. 28.) A. Vertical section of thallus and apothecium. b. Sporidium. c. Ascus with sporidia enclosed. 2. Pertusariafallaw, Ach. (p. 29.) A. Vertical section of thallodal wart and apothecium. b. Spo- ridia. c. Asci with enclosed sporidia embedded among the paraphyses. 3. Pertusaria melaleuca. (p. 29.) A. A. Vertical sections of thallodal wart and apothecium. b. Sporidia. 4. Pertusariapustulata. (p. 30.) A. Vertical section of thallodal wart and apothecium. b. Spo- ridium.