842 



C. SKOTTSBERG 



Fiy. II. Yiaiqiica Tenzii on the summit of El Yunqiie. — Photo Augusto Grosse 17/8 1934. 



Very rare. A small tree, 2 — 3, seldom 4 m tall, with a broad hemispherical head: 

 main stem up to 9 cm thick, bark ringed with conspicuous leaf scars. A tall specimen, 

 which was well over 3 m high, had 4 generations of branches and had flowered 

 thrice; the innovations require several years before producing the large terminal 

 panicle. In August, 1908, as well as during our permanence from December 

 to May, 1916 — 17, only remnants of old inflorescences were seen, and I am pretty 

 sure that not a single individual flowered that summer; whether the same was 

 the case during the summer 1908 — 09 I cannot tell. Johow had no better luck, 

 and a flowering plant was seen for the first time in December, 1935; for partic- 

 ulars, see Skottsb. ig. 363 — 365, fig. i. Flowers dark blue. Ceiitaurodendrcii is 

 an extreme rosulate type (comp. Skottsb. ?, PI. 5:2); on the top of a branch 

 I counted 25 leaves crowded over a distance of 30 mm, the average length of 

 the internodes being about 1 mm. Bud forming a closed cone, seen with leaves 

 unfolding in August (Skottsb. ?. 57, fig. 10). 



Yimquea 7>;z^/V Skottsb. Compositae. Collected twice in the only locality known, 

 the summit of El Yunque. All material preserved is a few large leaves, the largest 

 60 cm long; for particulars see Skottsb. J^. 163 — 166, figs. 14,15. The label indicates 

 that it is a 3 m tall tree of the type of a Dendroseris, but whether the collector 

 means Dcndroseris s. str. or, and this is quite possible, Phoaiicoscris, we do not 

 know; the photograph fig. 1 1 shows a palmiform plant which has not yet flowered 

 in spite of having attained a height of 2.5 — 3 m. If of candelabrum type it ought 

 to have flowered and branched before reaching this size. The morphology of 



