THE PHANEROGAMS OF THE JUAN FERNANDEZ ISLANDS 



203 



Masatierra: Portezuelo de Villagra (Bertero no. 1601 !), on the north- 

 east precipice of Co Piramide, rock ledge, c. 625 m (fl.-fr. 8 /i2 16, no. 3). Most 

 likely the plants observed on the face of Co Damajuana, c. 530 m, and at the 

 back of Q. de la Choza, c. 450 rri, in both places quite out of reach, belonged 

 to this species. 



JOHOW wanted to explain D. marginata as a local form of macrophylla, 

 due to external conditions. Both, however, grow in the same place and do not 



Fig. 57. Achenes (a — 1) and embryos (m — p) of Dendroseris subgen. Eudendroseris. a D. ma- 

 crophylla, two achenes from the side; b— d D. macrantha: b marginal achene, ventral view, 

 c — d central achenes,' side view; e — i D. marginata; e — f marginal achenes, e ventral and 

 f lateral view; .g — i central. achenes, g— h lateral, i ventral view; k— 1 D. litoralis : k central 

 achene, lateral view and 1 marginal achenes, dorsal view, m embryos of D. macrophylla, n of 

 D. macrantha, o of D. marginata and p of D. litoralis. — All X 5- 



only differ in the leaves. Bertero's specimens were sterile, but another 

 collector, not quoted until now, found the inflorescence (in fruit). A specimen 

 in Herb. Kew labelled »Rea longifolia Phil., Reed oct. 1872s, consists of a leaf 

 of D. micrantha and a piece of an old inflorescence of D. marginata. 



The leaves are coriaceous, broad ovate with rounded or acuminate tip and 

 cordate base. They are quite entire, but the edge shows scattered warts, 

 visible on the leaf near the rock in plate 18. The petiole is broadly alate. 

 The upper leaves are sessile as in the former. The (hitherto undescribed) 



