THE PHANEROGAMS OF THE JUAN FERNANDEZ ISLANDS 



J 97 



The female head is 4 mm across; ray florets 8, yellow, 4 mm long with 

 small ligule (c. 1X0,9 mm), 2— 3-dentate. Disc florets cylindric, yellowish 

 green, 3,2 mm long, with exserted bifid-truncate style and minute staminodes. 

 The achenes are i, a mm long, costate, glabrous according to JOHOW, but 

 minutely scabrid. 



Area of distribution: Endemic in Masatierra. 



Fig 35. a— b tip of style in male disc florets, a of R. thurifera, b of R. evenia, X 50. c 9 

 head of R. Masafuerae, X 5- d— i achenes: d— e R. Gayana, ray (d) and disc (e); f— g R. thuri- 

 fera, ray (f) and disc (g); h R. gracilis (disc); k — i R. Masafuerae, disc (k) and ray (i). d — i X 17. 



Rhetinodendron Meisn. 



131. R. Berterii (Dene) Hemsl. — JOHOW, Estud. 55. — Fig. 36. 



Masatierra: in the high parts of the central section, generally in open, 

 low forest, rarely observed below 500 m, scarce. — El Rabanal (Johow); the 

 depression between Co Damajuana and Co Yunque, 540 m; V. Colonial, C. 

 Central (also observed by Johow), on both sides of the crest, 535 — 570 m, 

 many specimens (past fl. $ 18 /i 17, no. 301); Portezuelo de Villagra, a few trees 

 on a rock ledge, c. 600 m (beg. fl. 14 /i2 16, no. 134 J 1 , 135 $); Q. Seca, in 

 the forest, one seedling; C. Salsipuedes (also observed by Johow); highest 

 part of Q. , Salsipuedes, rare (fl. $ 20 /i2 16, no. 173) ridge west of Co Yunque, 

 c. 530 m; Q. Villagra, in the forest c. 500 m, solitary (also observed by Johow); 

 south slope of Co Chumacera (fl. $ 6 /i 17, no. 253). 



According to Johow, Rhetinodendron generally is an epiphyte, and later 



