THE PHANEROGAMS OF THE JUAN FERNANDEZ ISLANDS 105 



JOHOW united C. fernandezianus Colla with C. reflexus. CLARKE retained it as 

 a species under Pycreus, because the stigma was described as bifid, but he had 

 not seen specimens. It is a very dubious species. 



Area of distribution: Mexico and Texas to extratropical South America; 

 Chile; Masatierra. 



Scirpus L. 



16. S. nodosus Rottb. — Johow, Estud. 142. 



Masatierra: In some places near the sea, but more often seen on open, 

 devastated ground or on the high ridges, always local and only collected before 

 by PH1LIPPI, Moseley and the writer (1908). — El Pangal, west branch, on 

 barren slopes; V. Colonial, near the road to Portezuelo, 325 m; C. Salsipuedes, 

 edge of the forest c. 600 m (fl. 20 /i2 16, no. 174); Pto Ingles, on the beach and 

 on the central ridge; Q. Juanango; Q. Villagra, not uncommon (past fl. B /i 17, 

 no. 238), and westward to B. Chupones. 



Masafuera: Cuming! Johow. — Abundant along the east coast from 

 Tolten to Playa Ancha (past fl. Feb. 1917, no. 513). 



Area of distribution: Widely dispersed in the south temperate zone, 

 circumpolar. 



17. S. cernuus Vahl. — Skottsberg, Stud. 23. 



Masatierra: Wet places along the coast, first found be the writer in 

 B. del Padre, 1908. — Outer part of El Pangal, mats in the stream (fl. n /i2 16, 

 no. 98) and at the waterfall in the bottom of the gorge (fl.— fr. 1 /i 17, no. 222); 

 B. Cumberland, wet grassy swamps near the sea (fl.— fr. 11 /i2 16, no. 99, fr. 29 /i2 16, 

 no. 1 1 7 1 ) ; Q. Juanango, in the stream; B. del Padre, on the beach; outlet of a 

 small stream near the foot of Co Negro; small stream west of El Yunque; 

 B. Chupones, dry stream bed. 



*Masafuera: Q. de la Loberfa (fl.-fr. 17 /a 17, no. 522). — New for Masafuera. 



Very variable in size; no. 222 reaches a length of 40 cm, probably the 

 largest form ever recorded (»culmi 3 — 18 cm» ace. to Clarke, Cyper. chil. 28). 



Area of distribution: Subcosmopolitan. 



Heleocharis R. Br. 



18. H. maculosa (Vahl) R. Br. subsp. fuscopurpurea (Steud.) Kiikenth. 

 Cyp. Nov. V. 432. — Syn. Isolepis fuscopurpurea Steud., H. vincentina Ciarke 

 1. c; H. melanocephala, Johow, Estud. 143? — Fig. 3 a. 



Masatierra: B. Cumberland, grassy swamp along a small stream (fl.-fr. 

 "/12 16, no. 97). 



I think Reed's specimens, cited under H. melanocephala by Johow, belong 

 here. Clarke quotes Philippi no. 5 1 for Juan Fernandez, but Philippi is not 

 listed as collector by Johow, and CLARKE quotes the same number for speci- 

 mens from Talca in Chile. 



