402 Transactions. 



Anatomy (fig. 13).— There is first a very thick and wrinkled 

 cuticle (cut.) on the upper surface. The epidermal (ep.) cells are 

 also thick-walled, and more or less cubical in shape. On the 

 upper surface stomata (st.) are present, slightly sunken below 

 the cuticle. On the lower surface, which is not exposed to the 

 sun or wind, there is no cuticle, and the stomata appear on a 

 level with the epidermal cells. At the most convex part of the 

 leaf the epidermal tissue is strengthened by two or three lavers 

 of very thick- walled cells, which may represent stereom-support- 

 ing tissue. The chlorenchyma is differentiated into palisade 

 (pal.) and spongy (sp.). The palisade consists of 3-4 layers of 

 the ordinary palisade cells, somewhat small and very closelv 

 packed, and densely filled with chlorophyll. Below this comes 

 the spongy tissue, first consisting of a mass of larger rounded 

 cells occupying the centre of the leaf, and below these again 

 come smaller rounded cells bordering on the lower epidermis, 

 and densely filled with chlorophyll. The intermediate larger 

 cells are somewhat scantily supplied with chlorophvll. The vas- 

 cular bundles (v.b.) are regularly arranged in the leaf. In the 

 lower part of the leaf we find five bundles ; higher up the two 

 have converged into three, and higher up still only one is found. 

 Resin- passages regularly lined with epithelium are found, usually 

 one above and one below each bundle. 



Abrotanella spathulata, Hook. f. 



" Leaves narrow, linear-spathulate, ^ in. to 1 in. long, obtuse 

 or acute, rather close-set, spreading, foliaceous."* 



Hob.—" Auckland Islands, 1,000 ft. to 2,000 ft. ; Campbell 

 Island, 500 ft. to 800 ft."t 



I find that Dr. Cockayne has not given any account of this 

 plant except to state, in the list of plants at the end of h:'s 

 paper, that it is found in Auckland and Campbell Islands. Ho 

 also mentions it (p. 281) as belonging to the subalpine rock floiv. 

 of Campbell Island. It belongs to the same class of rock-plants, 

 and would be found in Auckland Island on the higher rocky 

 ground. It is growing on the rockery side by side with A. 

 rosulata. Its leaves are longer and the rosettes consequent! v 

 larger than those of A. rosulata, and the purplish colour of the 

 lower membranous portion of the leaf is absent in A. spathulata. 

 Otherwise the appearance of the two is very similar, and an 

 examination of the anatomy does not reveal any striking dif- 

 ferences. There are more vascular bundles and consequent! v 

 more resin-passages, but in other details the structure is very 

 similar. 



* Kirk (1899), [>. 330. 

 t Kirk (1899), p. 331 



