A SUPPI.KMKNI' TO TMK I' IF.RIIX^PHVTES AND PHANEROGAMS OK JUAN KF.RNANDKZ 77 I 



species as iiuligenous in Juan b^ernanclez. iiiacrat/icrci Pliil. and fenia)idezia}ia 

 (Trill, et Rupr.) Steud. In the key they are distinguished from each other and 

 from their nearest relatives as follows. 



Pubescense on fruit' e.xtendini?, at least in lines, nearly to the summit. Fruit 



6 — 7 mm lono uiucroiiata 



Pubescense on fruit confined to the callus- and lower part of the body. Fruit 

 5 — lo mm lon<;. 



Fruit about lO mm long 



Terininal segment of awn 5 — 7 cm long, flexuous niacrathera 



» » » » 2 — 3 » » straight fernandeziana 



Fruit 7—8 mm long 7ieesiana 



As stated in 3.97 I came to the conclusion that there is only one true 

 Stipa (excl. Nassella) in the islands, originally known as Stipa neesiamx Trin. 

 et Rupr. Y fcrnandczia)ia Trin. et Rupr., referred to by Hitchcock as S.fernande- 

 ziana (Trin. et Rupr.) Steudel. Certainly Steudei. believed that what he had 

 before him was the variety of Trinius and RUPRECHT, of which he had not seen 

 the type, but as PiLGER has shown (Skottsb. 1.22), "^'YYXiYyYAJ^ fernaiidezhma 

 is = PiptochaetiuDi bkolor (Vahl) Presl, whereas the var. fernandeziana is a true 

 Stipa. Of this HiTCllCOCK examined both the type and my material, but he 

 never saw the plant on which Steudel based his combination. 



Another name for the island Stipa is S. Skottsbergii Pilger ex. SkottSB. 

 1.22, coined to vepXa^cc fernaudeziaua Steud. There was already a S. fernande- 

 ziana Phil. 1873. which, in spite of being a later homonym, was retained by 

 Pilger who at that time counted with two closely related species in the islands, 

 and so did, as we have seen, HiTCHCOCK who, however, rejected Philippi's 

 name as illegitimate according to the Rules and took up ^. niacrathera Phil, 

 to replace it, because these two species were regarded as identical by HiTCll- 

 COCK. I have seen the type of 5. fernandeziajia Phil. It differs from all other 

 specimens from the islands that I have examined in the longer empty glumes 

 and longer awn, but I have shown (3. 97) that it represents an extreme form, 

 of which only the type is known, that it is united with the normal state by 

 transitions and that it cannot be regarded as specifically distinct. The type of 

 5. niacrathera Phil., whicli I have not seen, came from the vicinity of Santiago. 



Of the three closely related species niucronata H. B. K., neesiana and fer- 

 nandeziana I have examined the material in Herb. Stockholm, 42 sheets (excluding 

 duplicate sheets). This material is small, but it is distributed over the entire 

 range of these species and gives, I believe, a fair idea of the variation; I have, 

 however, not seen Mexican specimens of niucronata. 



Typical niucrojiata should, according to HlTCllCOCK 223, have glumes 10 — 

 12 mm long, a small lemma of only 5 — 6 (6 — 7 in the key, say 5 — 7) mm, 

 dark brown, villous on the lower half, glabrate and papillate-roughened in the 



= body of lemma. 

 = stipe of lemma. 



