'52 



C. SKOTTSBERG 



Fig. i8. Dendroseris macrantha, Portezuelo de \'illagra, Masatierra. — Photo 22 i 1917. 



free in the temperate house in 1938, was very fast-growing and had to be cut back; 

 it formed several branches and flowered in July, 1940. The height was 3 m, the length 

 of the main stem 2.3 m, with a thickness of 9.6 cm at the base and 6.1 cm at the 

 top. Fig. 17 is a diagrammatic sketch of a flowering branch. The internodes are much 

 longer than in nature and the innovations, 6 in this case, twice or three times as 

 many. One of these was potted 15.3. 1941 and flowered from 1.6 to 7.7. 1942. With 

 its orange-coloured head the size of a dandelion, and glaucous involucre, it is quite 

 attractive and deserves the attention of botanical gardens. 



Dendroseris viarginaia (Bert, ex Dene) Hook, et Arn. I<!ndemic on INIasatierra, 

 very rare, at present only known from a few localities in the centre of the island, 

 450 — 600 m above sea-level. Very like D. litoralis in all respects; the specimen 

 Illustrated on PI. 18 (this vol., no. 7), was 1.25 m tall with a stem diameter of 3.5 cm. 



Dendroseris niaerantka (Bert, ex Dene) Skottsb. Masatierra, only known from 

 the vicinity of Portezuelo de Villagra and probably on the verge of extinction. 

 A fair-sized tree as observed by Bertero (see p. 202 of this volume), but two small 

 plants growing among shrubs was all we were able to discover (Fig. 18). Agrees 

 with the former in all essential characteristics. 



Dendroseris macrophylla D. Don. Endemic on Masafuera, scattered on rock- 

 ledges in the canyons and on lofty coast clifts; highest station noted about 700 m. 

 Most specimens seen were 2 or 3 m tall with trunk not over 5 cm thick (Skottsb. j, 

 PI. 4:2), but in better soil D. macropJiylla surpasses its congeners, attaining a 



