104 CARL SKOTTSBERG 



PlLGER made the new name B. megalacJine in order to avoid confusion 

 between B. Berteronianus and B. Bcrterianus Colla. But there is no reason why 

 we should not use Philippi's specific name. 



Area of distribution: Endemic. 



*I2. B. (Megalachne) niasafueramis Skottsb. et Pilger ex PlLGER, Uber 

 einige Gram. 385. — Fig. 2 k — r. 



Masafuera: Las Torres, on rocks, 1370 m (fl.-fr. 14 /2 17, no. 415). 



An interesting addition to the flora. The description 1. c. is supplied here 

 with some illustrations. The flowers are cleistogamous (see fig. 2 m). 



Area of distribution: Endemic in Masafuera. 



Chusquea Kunth. 



13. Ch. fernandeziana Phil. — Johow, Estud. 141. 



Masatierra: in the forest belt, rare below 400 m, more common higher 

 up, but never abundant nor forming thickets comparable with the famous Chilean 

 »colihuales»; also in dense brushwood on the high peaks and crests. — C. 

 Chifladores, slope of the Frances Valley, c. 500 m (no. 621); main ridge above 

 Pangal, 795 m; north side of Damajuana, 530 m and in the quebrada below, 

 west side, 345 m (no. 212); V. Anson, slopes of Co Yunque; Co Piramide, on 

 rock ledges, 550 — 600 m; V. Colonial, Q. Gutierrez, c. 450 m, in dense forest; 

 Pto Ingles, in higher ground; Co Alto (P. Gutierrez); mountain spur west of 

 Co Yunque, 415 m; Q. Villagra, just below Portezuelo, and by the stream farther 

 down, 160 m; Q. de la Choza, c. 300 m, not uncommon. 



The colihue did not flower during our permanence, nor was it fertile in 

 1908. Flowers are known from the type material only (coll. Nov. 1864, PHILIPPl!) 



Area of distribution: Endemic in Masatierra. 



Cyperaceae. 



Cyperus L. 



14. C. vegetus Willd. — Johow, Estud. 142. 

 Moist places, generally near the sea. 



Masatierra, only reported from the central and western sections: El Pangal 

 (Johow); V. Colonial (past fi. 29 /i2 16, no. 202); Pto Ingles, by the stream near 

 the sea; B. Chupones. 



Masafuera: Germain. — Rocky coast between Casas and Vacas (fl.-fr. 

 13 /2 17, no. 426); near Las Chozas; Loberfa vieja, on the beach. 



Area of distribution: Chile; Juan Fernandez; Easter Island. 



15. C. reflexus Vahl. — Johow, Estud. 142. 



Masatierra: reported by Scouler, Bertero, Germain, Reed, Moseley 

 and Johow, by the last mentioned from B. Cumberland. We did not see it. 



