202 
Gibbs. — Bio-histological notes on some new 
the flowers in their axils (Text-fig. 8, c.l.). The radical leaves are minute, 
ovate-obcordate in shape (Text-fig. 9, r.li). The first impression that they 
were water-storage organs was not borne out, as in section their tissues 
proved to be packed with starch. The structure is leaf-like (PL XII, Fig. 16), 
the palisade tissue being replaced by parenchyma in regular rows of cells 
on the dorsal surface (PI. XII, Fig. 16, pi), while on the ventral surface 
typical mesophyll obtains, also packed with starch (PI. XII, Fig. 16, mi). 
Stomata occur on the epidermis (PI. XII, Fig. 16, st.), which is cuticularized, 
and some multicellular hairs are seen in the central depression (PL XII, 
Fig. 16, hi). It was impossible to get a good section of the cauline leaves, 
though the fact was established that the bilateral structure is maintained in 
them. From Text-fig. 8, v.s. 2, it will be seen that several buds remain 
dormant on the rhizome, and it is no doubt these which subsequently break 
away later on in the season, growing out into the vegetative shoots already 
referred to (Text-fig. 8, v.s. 1.). These shoots rooting at the nodes 
(Text-fig. 8. n.ri)\ the thick rhizome is elaborated previous to the develop- 
ment of the resting buds on its surface. The leaves on 
this vegetative shoot are very large, ovate, and about 
3 cm. long. From the material in the British Museum, 
kindly placed at my disposal for drawing, later stages 
in the development of the flowering shoots could be 
followed. In specimens collected by Dr. Rand in 
September and October, the flowering shoots had elongated considerably, 
and the cauline leaves increased in size, whereas in December the erect 
growth was already lost and the shoot had dropped into a horizontal 
Fig. 9. 
Jtislicia elegantula , 
Radical leaf. 
