SHOWING STRUCTURE, FROM THE RHYNIE CHERT BED, ABERDEENSHIRE. 899 
Plate IV. 
Fungus No. 9. (Paheomyces vestita.) 
Fig. 36. Longitudinal section of the cortex of the stem of Asteroxylon showing the resting-spores of 
Fungus No. 9 distributed through the decayed tissues, and also within a large resting-spore of Fungus No. 2. 
x 100. (No. 2454.) 
Fig. 37. Resting-spores of Fungus No. 9 showing their investment by fine hyphse. x 250. (No. 2473.) 
Fig. 38. Hyphse and resting-spores of Fungus No. 9 ; some of the latter are invested by the fine hyphse. 
x 250. (No. 2454.) 
Fungus No. 10. ( Palmomyces agglomerate/,.) 
Fig. 39. Group of hyphse and resting-spores of Fungus No. 10 in relation to a decayed stem of Rhynia 
Gwynne-Vaughani. x 100. (No. 2533.) 
Fig. 40. Portion of group in fig. 39 showing hyphse and spores. x 250. (No. 2533.) 
Fig. 41. Portion of group in fig. 39. Intercalary enlargements to form spores are seen in some hyphse. 
x 250. (No. 2533.) 
Fungus No. 1 1 . 
Fig. 42. Hyphse and small vesicles of Fungus No. 11 breaking out from a tissue cell of Rhynia Gwynne- 
Vaughani. x 250. (No. 2534.) 
Fig. 43. Hyphse and small vesicles of Fungus No. 11 in the position of the dark layer of cells below the 
outer cortex of a decayed stem of Rhynia Gwynne-Vaughani. x 500. (No. 2527.) 
Fungus No. 12. 
Fig. 44. Cortex of Rhynia Gwynne-Vaughani containing hyphse and vesicles of Fungus No. 12. x 100. 
(No. 2535.) 
Fungus No. 13. ( Palaeomyces Simpsoni.) 
Fig. 45. Surface of a decayed stem of Rhynia Gwynne- Vaughani in a section from Mr Simpson, showing 
an oval break in the surface beneath which are the crowded young vesicles of Fungus No 13. x 100. 
(No. 2568.) 
Fig. 46. Group of stalked vesicles of Fungus No. 13 proiecting from the surface of the same stem, 
x 100. (No. 2568.) 
Fig. 47. Some of the vesicles in fig. 46. x 250. (No. 2568.) 
Plate V. 
Fungus No. 14. 
Fig. 48. Globular mass of fine hyphse and resting-spores and short stalk composed of associated fine 
hyphse of Fungus No. 14. x 100. (No. 2533.) 
Fig. 49. Resting-spores from specimen in fig. 48. x 250. (No. 2533.) 
Fig. 50. Mass of hyphse and resting-spores of Fungus No. 14 enclosed by the thick wall of the resting 
spore of Fungus No. 3. x 100. (No. 2536.) 
Fig. 51. Fine hyphse of Fungus No. 14 filling the cavity of a partially decayed resting-spore of Fungus 
No. 3 and its hyphal stalk. x 100. (No. 2479.) 
Fig. 52. Resting-spore of Fungus No. 3 with groups of vesicles and hyphse of Fungus No. 14 on the 
surface, x 100. (No. 2537.) 
Fig. 53. Same specimen seen from other side in section. x 100. (No. 2537.) 
Fig. 54. Another specimen of Fungus No. 3 showing vesicles and hyphse of Fungus No. 14 on the 
surface, x 100. (No. 2428.) 
