145 
1917-18.] Phycomycetous Fungi. 
Fig. 4. From cortex of Lepidodendron aculeatum. Shows terminal solitary 
vesicle, which is connected with hypha at a. 
Figs. 5-9. Palaeomyces bacilloides. 
Fig. 5. From leaf-base of Lepidodendron. 
at this point. x 175. 
Fig. 6. From leaf-base of Lepidodendron. 
hypha. x 400. 
Fig. 7. From leaf-base of Lepidodendron. 
of hyphse. x 250. 
Fig. 8. From leaf-base of Lepidodendron. 
See text-fig. 7 for drawing. x 400. 
Fig. 9. From leaf-base of Lepidodendron. 
and septated at constricted parts. x 250. 
See text-fig. 5 for drawing of hypha 
Shows abrupt change in thickness of 
Cells filled with detached fragments 
Hypha (a) with attached vesicle (b). 
Hypha showing constrictions at a, 
LITERATURE. 
(1) Cash, W., and Hick, T., “On Fossil Fungi from the Lower Coal Measures 
of Halifax, ” Proc. Yorks. Geol. Polyt. Soc., vol. vii, 1878. 
(2) Duncan, P. M., “ On some Thallophytes parasitic within recent Madre- 
porise,” Proc. Boy. Soc. Lond., vol. xxv, 1876-77. 
(3) Ellis, D., “Fossil Micro-organisms of the Jurassic and Cretaceous Rocks of 
Great Britain,” Proc. Roy . Soc. Ed, in., 1915. 
(4) Magnus, P., “Ein von F. W. Oliver nachgewiesener Pilz,” Ber. der deutsch . 
hot. Ges., 1903. 
(5) Meschinelli, Fungorum fossilium omnium hucusque cognitorum Icono- 
graphia , Yicetise, in sedibus J. Galla, 1902. 
(6) Murray, George, Academy , Nov. 1877. 
(7) Oliver, F. W., “ Notes on Fossil Fungi,” New Phytologist , 1903. 
(8) Renault, B., Etudes des gites miner aux de la France : Bassin houiller et 
permien d’Autun et d' Epinac, fasc. iv, “Flora fossile ” (2 e partie), Paris, 1896. 
(9) Renault, B., et Bertrand, C. Eg., “ Grilletia Sphserospermii Chytridiacee, 
fossile du terrain houiller superieur,” Comptes rendus hebdomadaires des seances de 
V Academie des Sciences, tome C, seance du lundi, 18 mai 1885, Paris, 1885. 
(10) Seward, A. C., Fossil Plants, vol. i. 
(11) Smith, Worthington, “A Fossil Peronospora ( Peronosporites autiquarius , 
W. Smith),” Gardener's Chronicle, 1877. 
(12) Weiss, F. E., “A Probable Parasite of Stigmarian Rootlets,” New Phyto- 
logist, vol. iii, 1904. 
(13) Williamson, W. C., “ On the Organisation of the Fossil Plants of the Coal 
Measures,” part xi, Phil. Trans. Roy. Soc., 1881. 
(. Issued separately August 22, 1918.) 
YOL. XXXVIII. 
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