THE PHANEROGAMS OF THE JUAN FERNANDEZ ISLANDS 97 



On dry treeless slopes, also in many places along the high, rocky ridges; 

 an important grass in the western half of Masatierra and in the basal region 

 of Masafuera. 



Masatierra: Germain! Philippi! — High peak between the colony and 

 Pangal, 365 m; V. Colonial, not uncommon (fl. V12 16, no. 19); Portezuelo de 

 Villagra, 590 m (fl. V12 16, no.; 28); C. Salsipuedes (fl.— fr. 8 /ia 1 6, no. 90, 20 /is 

 .16, no. 170); Q. Juanango; between Villagra and Pta Larga, in many places; 

 but not abundant (fr. 6 /i 17, no. 244). 



Masafuera: Probably in all the valleys; Q. Seca, abundant; Q : de las 

 Casas, very common to a couple of hundred m inland; Q. de, las Vacas, abun- 

 dant in the outer parts (fr. 10 /2 17, no. 447). 



Leaves to 4 or 5 mm broad, generally convolute, densely pubescent below, 

 glabrous or with few hairs above. Rays of the, panicle about 6-flowered. Empty 

 glumes very acute, outer 3-, inner 5-nerved, brownish purple with translucent 

 margins and point, 14 — 15 mm long in my specimens. Pedicel of flower 

 3—3,5 mm, densely silky with longer hairs on the ventral side. Floral glume 

 7 mm long, with 5 prominent nerves, dorsal line pubescent to about 2 /s of its 

 length, thence glabrous; external face covered with acute papillae; collar 1 mm 

 high, brownish purple, the edge with a crown of white hairs about 1 mm long, 

 but shorter on the ventral side; awn to 70 mm, slightly geniculate or almost 

 straight, laxly twisted and pilose in the lower half, thence scabrous. Lodicules 

 about r,i mm, ovate-truncate. Palea nearly 2 mm ldng, ovate-lanceolate, acutate, 

 nerveless. . Stamens dimorphous,, the anterior with normal anther, 1 mm long, 

 linear, fertile, the others with more ovoid, V3 — V 2 mm l° n g> almost entirely 

 sterile anthers. Anthers sometimes aristulate^ Ovary about 1 mm long, fusi; 

 form, stigmas short pedicellate. Flowers cleistogamous. 



This species was listed as S. manicata Desv. by Philippi, Bot. Zeit. XIV.630, 

 but distinguished as var. hirsuta on the label of Germain's specimen in Herb. 

 Santiago, collected Oct. 1854 in Masatierra. Later Philippi, who collected the 

 same species in Nov. 1864, described it as S. fertiandeziana Phil. A comparison 

 with the type showed that all my material must be referred to Philippi's 

 species; his plants, however, differ from mine in the empty glumes reaching a 

 length of 21 mm while the awn is as much as 90 mm long. 



It is not at all remarkable that Philippi at first regarded the island Stipa 

 as a variety of S. manicata. I have not seen authentic material of the latter, 

 but to judge from the detailed description in Gay, Bot. VI. 288, it must come 

 very near this. S. manicata differs by the shorter leaves, which are hairy on 

 the inside and glabrous on the outside, the longer ligule, the shorter glumes, 

 described as green below, the shorter pedicel of the flower, shorter awn etc. 

 The anthers seem to be alike in both. 



As only one Stipa has been collected in the islands by all visitors known 

 to me, it seems natural to identify S. Neesiana var. fertiandeziana Trin. et Rupr. 

 with J>. fernandeziana Phil., but the description » foliis planiusculis cum nodis 

 glabris ligula 1 Va-linealb does not answer to any form seen by me in the islands 

 or in herbaria. My specimens of -S. Neesiana from Central Chile (no. 10 17), 

 determined by Prof. PlLGER, are glabrous and have smaller spikelets than 5. 

 fernandeziana. Prof. PlLGER was inclined to regard the latter as identical with 

 7 — 30100. The Nat. Hist, of Juan Fernandez and Easter Isl. Vol. II. 



