472 Wernham, The System atic Anatomy of the genus Ccmephora. 



parallel to the pore and so the stomata conform to the 

 so-called "Ruhiaceous" type.^) 



Thepeduncle of the inflorescence is invariably borne 

 in the axil of a leaf (see fig. 1), and so must be regarded 

 morphologically as a stem-structure; this estimate of its 

 natura is borne out by the fact that the main bündle is a 

 conipletely-closed cylinder. The faint sug-gestion of dorsi- 

 ventrality, both internally aud externally, is curious 

 (supra, p. 463). 



As regards the cell-contents, tannin is plentiful, 

 especially in the exterior layers (excepting, of course, 

 the epidermis). It abounds in thephloem of all parts, and 

 occurs thrjoughoutthe ground-parenchyma, pith, andintra- 

 stelar tissue generally, and frequently in the medullary 

 rays. In the leaf, tannin is especially abundant in the 

 palisade tissue. 



Calcium Oxalate occurs in the form either of crystal- 

 sand or of cluster-crystals; the former, moreover, displays 

 a marked tendency to beconie aggregated into amorphous 

 masses. No raphides were observed. Crystal-sand is pre- 

 sent generally in theground tissue, both iutra- andextra- 

 stelar (pith, cortex etc.); it is usually very abundant in 

 the phloem. 



The foregoing research has been conducted in the Botanical 

 Department of Goldsmiths College, üniversity of London; and my 

 acknowledgements are due to the Trustees of the British Museum 

 for the use of the material, which was taken from the National 

 Herbarium. I have also to thank Mr. Keuch, of the Botanical De- 

 partment, British Museum, for figure 1, which he copied from 

 Drake's Hist. Nat. des Plantes in the Hist. Phys. Nat. et Pol. de 

 Madagascar of Grandidier (vol. XXXVI, tom. VI, pl. 444, flg. 1). 



1) V. Solereder, Systematic Anatomy of the Dicotyledons. Transl. Oxford, 

 (Boodle and Fritsch) 1908. II. p. 1078. 



