A SUPPLEMENT TO THE PTERIDOPHYTES AND PHANEROGAMS OF JUAN FERNANDEZ 785 



"Pa[)pus uniscrialis nunc persistens pilis in tubuni coalitis nunc basi franj^ens 

 caducissimus, " and DK Candoli.K 2 (1837) 448 "Pai)pus . . . setis nunc liberis 

 nunc in va^inani concretis." At the same time he figured Gayaiia and tliurifeva 

 in Dki.KSSKR'i 's Icon, select. i)hmt. IV. As type of the genus I\o/>i>isojiia s. str. 

 I propose A'. (laydjui, tlie coninionest species. A', macroccphala will form a 

 separate, nionotypical genus. 



130. R. gracilis Dene. Skottsh. 3.196, 5.158, 8.362. 



Add Masatierra: Corral Remolino, 400 m, $ fl. 8/12 1935, Herb. BocK no. 

 82! summit of Kl Yunque, Tp:nz I.e. 6: 9, and nos. 35! 39! 



Symphyochaeta (DC. ut sect.) n. gen. 



Dioica. Capitula ? paniculam pyramidalem formantia, calyculo e bracteis paucis 

 minutis instructa. Squamae involucri rigidae, usque apicem in cupulam concretae, 

 maturitate fructuum irregulariter dehiscentem. Pappus ? setis ad medium arete 

 coalitis vaginam membranaceam persistentem formans, corollam item persistentem 

 amplectens. Achaenium maturum lageniforme, corolla duplum vel ultra longius, 

 nervoso-costatum, transverse rugosum, parce sed perdistincte setosum. Icon. 

 Skottsf.. 3. 194. — Arbuscula habitu Robinsoniae, sed folia reticulo perdenso 

 pellucido venularum a Robinsoniis veris discrepantia (v. JOHOW 56, fig. 2). 



125. S. macrocephala (Dene) n. comb. Rohiiisouia viacrocephala Dene, 

 Skottsb. 3. 191. 



131. Rhetinodendron Berterii (Dene) Hemsl. Skottsb. 3.197, 5.160. 

 Add Masatierra, south side of Portezuelo de Villagra, c. 400 m, BoCK no. 



71 ! summit of El Yunque, Tenz no. 40! (a very large-leaved form). 



132. Centaurodendron dracaenoides Johow. BocK; Skottsb. 3.198, 5.160, 

 8.364, where the flowers are described and illustrated. 



Add Masatierra: Co Damajuana, c. 500 m, fl. 812 1935, Weber in Herb. 

 Bock no. iii! Summit of El Yunque, Tenz nos. 36! 41! 



^•Tunquea Skottsb. 5.163, 8.363; Looser 4. 



=^T. Tenzii Skottsb. 



Masatierra: summit of El Yunque, Tenz 1922, no. 42! Andaur, 925 m, 

 Aug. 1934, Herb. BocK no. 40! YuNGE & Grosse 1935, Herb. Looser n. 3162! 



Young leaves covered on both sides (more thickly on the lower) with a soft 

 white, caducous wool. Marginal teeth end in a large capitate secretory gland. 



Dendroseris D. Don. Skottsb. 3.199. 



What I have said about Robinsonia and its components applies also to 

 Dendroseris which, according to my views, could be divided but just as well 

 left in its accepted sense. WODEHOUSE's pollen studies made me reconsider the 

 alternatives. Of the three subgenera recognized by rne, WODEHOUSE examined 



