rilYLLOTUECA. 



23 



1880. ? Equisetaceous stem, Feistniantel, Flora Gondw. Syst., vol. iii, pts. 2, 3, 

 pi. xiiiA, fig. 7. 



1890. Phyllotheca australis (in part), Feistmantel, Mem. Geol. Surv. New 



South Wales, Pal., Mo. 3, p. 79, pi. xiv, fig. 5. 



1891. P. deliquescens, Solms-Laubach, Fossil Botany, p. 181, fig. 17 b. 

 1898. P. deliquescens, Seward, Fossil Plants, vol. i, pp. 283-286. 

 1900. P. deliquescens, Zeiller, Eleni. Paleobot., p. 165, text-fig. 116. 



1902. P. deliquescens, Arber, Quart. Journ. Geol. Soc, vol. lviii, pp. 17, 22, 

 pi. i, fig. 3. 



Fig. 7. — Phyllotheca deliquescens (Gopp). After Schmalhausen. Nat. size. 



Pith-casts usually broad, articulate ; internodes coarsely sulcate, 

 the ridges and grooves opposite at the nodes. Stem-casts stout, 

 with internodes as much as 10cm. long; internodes strongly 

 ridged and grooved. Whorls of branches may arise at the node. 

 Leaf-sheaths well developed, funnel-shaped ; free segments long, 

 linear, spreading, each traversed by a median vein. Fructification 



