PACHYMA COCOS, AND MYLITTA LAPIDESCENS. 97 



EXPLANATION OF PLATES. 

 Plates IX. & X. 



Figs. 1, 2, 3. Specimens of Sclerotium stipitatum, Bk. & Curr., natural size. 



Fig. 4. Thin section of the inner substance of Sclerotium stipitatum highly magnified. 



Fig. 5. Specimen of Pachyma Cocos, Fr., in the Linnean Society's herbarium, natural size. 



Fig. 6. Longitudinal section of another specimen in the same herbarium. 



Figs. 7 & 8. Thin sections of portions of the latter specimen, highly magnified. 



Fig. 9. Portion of another specimen of P. Cocos in the Linnean Society's herbarium, showing cracks in 



the substance, the walls of which cracks are united by woolly fibres. 

 Figs. 10-13. Specimens of Choo-ling, natural size. 

 Figs. 14-17- Specimens o{ Mijlitta lapidescens, Horan., natural size. 



VOL. XXIIl. 



