98 carl skottsberg 



S. longijlova Steud Syn. I. 124, of which there is a sheet in Berlin (BERTERO 

 no. 800). But the description of STEUDEL clearly forbids the identification. 

 The leaves are 1 mm wide only, the rays of the panicle bear 1 — 3 flowers, the 

 glumes are 5-nerved and only 6 to 8 mm long, the »floscule» is described as 

 pilose all over. I collected a Stipa near Valparaiso (no. 1019), that answers 

 very well to STEUDEL's description, and this is not S. femandeziana. I have 

 no reason to doubt that 5. femandeziana is the same as 5. longiflora Herb. 

 Berlin, for STEUDEL quotes BERTERO no. 800 ex parte for his species. Prof. 

 PlLGER thinks that .S. macratJiera Phil. Anal. Univ. XCIII.720 is another name for 

 S. femandeziana. The description is incomplete, and I have no authentic spe- 

 cimen at hand. 



S. femandeziana Steud. 1. c. was shown by PlLGER ex SKOTTSBERG, Stud. 

 22 to be = PiptocJiactium bicolor. 



My identification of S. Skottsbergii Pilger 1. c. with S. femandeziana Phil, 

 was approved by the author of the former. There is a certain variation in the 

 leaves, probably due to external conditions. The same kind of variation is 

 found in Piptochaetinm bicolor. 



Area of distribution: Central Chile; Juan Fernandez. 



Piptochaetium Presl. 



2. P. bicolor (Vahl) Presl. — Johow, Estud. 125. — Syn. Oryzopsis 

 bicolor Speg., SKOTTSBERG, Stud. 22; Stipa bicolor Vahl, non Johow nee Hemsley; 

 S. femandeziana Steud. non Phil. 



Masatierra: Open ground in the centre of the island, not common. V. 

 Colonial, near the colony (fl.-fr. B /i2 16, no. 18) and also higher up (fr. 24 /i 2 16, 

 no. 1 201); Pto Ingles (fr. 19 /i 17, no. 315); grassy slopes of Villagra, rather 

 abundant (fr. 6 /i 17, no. 243). 



Area of distribution: South Brazil, Argentina, Chile, Masatierra. 



3. P. laevissimum Phil. — Johow, Estud. 135. 



In the lower treeless parts of the valleys, abundant in the western half of 

 Masatierra and in the basal region of Masafuera. 



Masatierra: V. Colonial, east part, dry soil near the sea (fr. n /ia 16, 

 no. 1 10); C. Salsipuedes, here and there up to about 600 m; Pto Ingles, com- 

 mon (fr. 19 /i 17, no. 316); Q. Juanango, very common; between Villagra and 

 Pta Larga, abundant, quite dominating over considerable areas (fr. 6 /i 17, no. 240). 



Masafuera: Johow. — Forming extensive mats in the basal region from 

 Tolten to Vacas, south of this valley not so common. It covers the bottom of 

 the outer part of the valleys, as well as the ridges between them, alternating 

 with the forest patches (fr. 19 /2 17, no. 553). 



This grass was first found in Masatierra by PHILITPI in 1864 and re- 

 discovered in 1908 by the writer. It is, perhaps, the most common of all grasses 

 considered to be indigenous. 



Area of distribution: Central Chile (quoted by JOHOW from the Cordil- 

 lera of Santiago and Colchagua, collected by me near Valparaiso); Juan Fernandez. 



