File:Plate 11 (Dawson, 1953).jpg

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English: Plate 11.
Figs. 1-2. Peyssonelia mexicana Dawson. Fig. 1. Schematic representation of a vertical section through a tetrasporansial thallus of the type, showing the thick perithallus of ascending cell rows and the extensive, elevated nemathecium, X 77. Fig. 2. A paraphysis 133 u long from the same specimen.
Figs. 3-4. Peyssonelia pacifica Kylin. Fig. 3. Schematic representation of a vertical section through a tetrasporangial thallus from Point Fermin, Calif., showing the non-elevated nemathecium and small sporangia, X 70. Fig. 4. A paraphysis 74 u long from the same specimen.
Figs. 5-6. Peyssonelia gadalupensis Dawson. Fig. 5. Schematic representation of a vertical section through a tetrasporangial thallus of the type, showing the thick, elevated nemathecium, large sporangia and multi-cellular rhizoids, X 75. Fig. 6. A paraphysis 170 u long from the same specimen showing the catenate upper cells.
Figs. 7-8. Ethelia mexicana Dawson. Fig. 7. Schematic representation of a vertical section through a tetrasporangial portion of the type, showing both ascending and desending portions of the perithallus, the sunken nemathecia and small sporangia, X 46. Fig. 8. Schematic representation of a vertical section cut radially through the marginal part of the type, showing many pluricellular rhizoids and the development of the ascending and descending perithallus cell rows from a horizontal mesothallus, X 60. [synonym of Metapeyssonnelia mexicana (E.Y.Dawson) D.L.Ballantine & H.Ruiz]
Fig. 9. Cruoriella hancockii Dawson. Schematic representation of a vertical section through a tetrasporangial thallus of the type collection, showing the prominent stratification of the thick thallus and a small, immersed tetrasporangial nemathecium, X 64. [syn. of Peyssonnelia hancockii (E.Y.Dawson) Denizot]
Figs. 10-11. Peyssonelia clarionensis Taylor. Fig. 10. Schematic representation of a vertical section through the tetrasporangial type specimen, showing the elevated nemathecium and ascending perithallus cell rows, X 92. Fig. 11. A paraphysis 110 u long from the same specimen.
Figs. 12-13. Peyssonelia conchicola Pice. & Grun. Fig. 12. Schematic representation of a vertical section through a tetrasporangial nemathecium of Howell 892, Bahia San Lucas, Baja Calif., showing an elevated nemathecium and the prominently ascending perithallus cell-rows, X 156. Fig. 13. Two of the short, coarse paraphyses (85 u long) from the same specimen.
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Source http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll82/id/6424
Author Dawson, E.Y. 1953. Marine red algae of Pacific Mexico. Part 1. Bangiales to Corallinaceae subf. Corallinoidae. Allan Hancock Pacific Expeditions 17(1): 1–239, Plates 1-33.
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Date/TimeThumbnailDimensionsUserComment
current09:43, 22 February 2020Thumbnail for version as of 09:43, 22 February 2020620 × 999 (63 KB)Christian Ferrer (talk | contribs){{Information |description={{en|1=Plate 11. :Fig. 54. ''Halymenia agardhii'' De Toni. Habit of a specimen of Taylor 39-646A, dredged near Isla Maria Magdalena, Las Ties Marias, Nayarit. :Fig. 55. ''Polyopes bushiae'' Farlow. Habit of a specimen of D. 10522, Punta Norte, Isia Cedros, Baja California.}} |date=1953 |source=http://digitallibrary.usc.edu/cdm/compoundobject/collection/p15799coll82/id/6424 |author= Dawson, E.Y. 1953. Marine red algae of Pacific Mexico. Part 1. Bangiales to Corallina...

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