900 DR R. KIDSTON AND PROF. W. H. LANG ON OLD RED SANDSTONE PLANTS 
Fig. 55. Medium-sized, thick-walled, resting-spore of Fungus No. 3 containing the resting-spores formed 
on hyphse of the intrusive Fungus No. 14. x 100. (No. 2443.) 
Fig. 56. Spores within the thick boundary wall from the preceding figure. x 250. (No. 2443.) 
Fungus No. 15. 
Fig. 57. Group of thick-walled resting-spores of Fungus No. 2 ; two of these contain the intrusive 
Fungus No. 15. x 100. (No. 2538.) 
Fig. 58. One of the resting-spores in fig. 57 showing the spores of the intrusive Fungus No. 15. x 250. 
(No. 2538.) 
Plate VI. 
Fig. 59. Resting-spore of Fungus No. 2 containing small spores of Fungus No. 15 within the main 
cavity and also between the layers of the wall. x 100. (No. 2539.) 
Fig. 60. Large resting-spore containing spores of the intrusive Fungus No. 15. x 250. (No. 2432.) 
Fig. 61. Resting-spore of Fungus No. 2 containing well-preserved spores of the intrusive Fungus 
No. 15. x 100. (No. 2427.) 
Fig. 62. Spores from the specimen in fig. 61. x 250. (No. 2427.) 
Fig. 63. Group of resting-spores of Fungus No. 2, two of which contain the intrusive Fungus No. 15. 
x 100. (No. 2427.) 
Figs. 64 and 65. Two of the specimens in fig. 63 more highly magnified to show the remains of fine 
hyphse attached to the spores of the intrusive fungus, x 250. (No. 2427.) 
Fig. 66. Spores of an intrusive fungus from another large resting-spore showing remains of the fine 
hyphse. x 500. (No. 2540.) 
Fig. 67. Resting-spore of Fungus No. 2 enclosing large thin-walled resting-spores of an intrusive 
fungus, some of which in turn are occupied by a smaller fungus, x 250. (No. 2435.) 
Fig. 68. One of the enclosed spores from fig. 67 showing the smaller spores and stalk-like remains of 
hyphse within it. x 500. (No. 2435.) 
Fig. 69. Resting-spore of Fungus No. 2, packed with spores of the intrusive fungus, which at one point 
have burst through the wall. x 100. (No. 2541.) 
Fig. 70. Portion of the preceding specimen showing the hyphse and vesicles bursting the enclosing wall, 
x 250. (No. 2541.) 
Fig. 71. Resting spore of Fungus No. 2 with the thin-walled spores of the intrusive fungus on its 
exterior. x 225. (No. 2542.) 
Fungi not sorted into Form-types. 
Fig. 72. Spherical spores distributed through a decayed stem of Rhynia Gwynne-Vaughani. x 100. 
(No. 2391.) 
Fig. 73. Two of these spores, x 250. (No. 2391.) 
Plate VII. 
Fig. 74. Small fungal spores distributed through a decayed stem of Rhynia Gwynne-Vaughani. A large 
thin- walled spore (c/. fig. 76) is present with them. x 100. (No. 2543.) 
Fig. 75. Some of the small spores in the preceding figure. x 250. (No. 2543.) 
Fig. 76. One of the large thin-walled spores accompanying the small spores (cf. fig. 74) containing 
four well-defined spores. x 250. (No. 2543.) 
Fig. 77. Small spores (?), possibly fungal, but with appearances suggesting algal cells. x 500. 
(No. 2544.) 
Fig. 78. The same, x 1000. (No. 2544.) 
Fig. 79. Two spherical groups or colonies of dark cells of uncertain nature. x 100. (No. 2558.) 
Figs. 80a, 80b. Two views of a resting-spore of a fungus with a peculiar covering of delicate radiating 
tubes, x 500. (No. 2545.) 
