_L. Dalhousianum_ Spring, from the mountains of the Malay Peninsula and Borneo, has larger leaves of finer texture with a distinct midrib reaching a length of 2–3 cm. (fig. 121, E). Another type is illustrated by _L. nummularifolium_ Blume, also a Malayan species, in which the leaves are shorter, broadly oblong or suborbicular, and the branches terminate in narrow and often very long strobili (sometimes reaching a length of 30 cm.) with small bracts in striking contrast to the foliage leaves (fig. 121, D). A similar form of long and slender strobilus occurs in _L. Phlegmaria_ Linn., a common tropical Lycopod: the frequent forking of the strobili noticed in this and other species is a character not unknown among fossil cones (_Lepidostrobi_). _L. cernuum_ Linn. (fig. 123), another widely spread tropical type, offers an even closer resemblance than _L. squarrosum_ to the fossil Lepidodendra. The stiff erect stem, reaching in some cases a length of several feet, bears numerous repeatedly forked branches, with crowded linear leaves, terminating in short cylindrical cones with broadly ovate sporophylls. A similar habit characterises the North American species _L. obscurum_ Linn. (fig. 124) bearing cones several centimetres in length. _L. casuarinoides_ Spring (fig. 121, F) an eastern tropical species, is worthy of notice as exhibiting a peculiar form of leaf consisting of a very small lamina, 3 mm. in length, borne on the top of a long decurrent base, which forms a narrow type of leaf-cushion, bearing some resemblance to the long and rib-like cushions of certain species of _Sigillaria_, and recalling the habit of slender fossil twigs referred to the Coniferae under such names as _Widdringtonites_, _Cyparissidium_, _Sphenolepidium_. _L. volubile_ Forst. (fig. 121, G) a New Zealand species, in habit and leaf-form bears a close resemblance to the Jurassic _Lycopodites falcatus_ Lind. and Hutt. (fig. 137): it is also a representative of a few species of _Lycopodium_ which agree with the majority of species of _Selaginella_ in having two kinds of sterile leaves, comparatively long falcate leaves forming two lateral rows and smaller appressed leaves on the upper surface of the branches.