438 University of California Publications in Botany [Vol. 7 



more united bi-aets, and fewer scaled aments. In the development of 

 the leaf st-ales the new species is remarkably like E. pedunculata, but 

 that species differs in its long reclining stems, long pedunculate 

 ovulate aments, and in its far removed range. The short, much united 

 leaf scale is a character which will distinguish E. peninsularis from 

 most North American species. 



Stenophyllus nesioticus sp. nov. 



Annuus multieaulis ; foliis filiformibus, 2-6 cm. longis, minus quam 

 1 mm. latis, glabris, suleatis, scabridis, quam culmo multo brevioribus, 

 vaginaruni faucibus pilosis; culmis tenuibus, levibus, numerosis, 

 obscure trigonis, prope apicem suleatis, 1-G dm. altis ; involucri 

 braeteis inconspieuis, quam spiculis plerumque brevioribus, 4—12 mm. 

 longis, exterioribus 2 interiores multo superantibus, anguste dilatatis; 

 spicularum braeteis ovato-lanceolatis, 3-6 in capitulum densum sessile, 

 4-6 mm. longum, 8-12-florum congestis, badiis; glumis late ovatis, 

 25-30 mm. longis, 3-ner\nis, extus tenuiter scabrido-pubescentibus, 

 margine plerumque fimbriatis; glumis inferioribus mucronatis; 

 staminibus 3; antheris lineari-laneeolatis, ca. 1.7 mm. longis, apice 

 mucronatis, loculis basi pilosis ; stylo trifido, quam ackaenium maturum 

 triplo longiori; nucis obovatis, ca. 1 mm. longis, albis, trigonis; stylis 

 coronatis, angulis levibus prominentibus, faciebus transverse rugosis. 



Type. — San Benedicto Island, Revillagigedo Islands, ]May-Juue, 

 1897, A. W. Anthony 317. Sheet no. 201076 in Herb. Univ. Calif. 



A species most nearly related to S. Warei Britt. (Tsolepis Ward 

 Torr.) of Florida, and to S. Selloiviana n. comb. (75. Scllowiana Kunth, 

 Enum. 2:208. 1837) of Brazil. From S. Warei (cf. Clarke. Ill, 

 Cyperac. t. 45, figs. 4-7. 1909) it differs in its darker and fewer 

 spikelets, narrower scales, and longer fringed involucral bracts; from 

 S. Selloiviana it differs in its fewer spikelets, and longer involucral 

 bracts which are neither obtuse nor ovate-oblong. From descriptions 

 it appears to be near some exotic forms, notably F. cinnamoneus 

 (Clarke) of Africa (cf. Clarke in Thiselton-Dyer, Fl. Trop. Africa, 

 8:432. 1902). The new species is apparently restricted to the Revil- 

 lagigedo Islands, which lie three hundred to four hundred miles 

 southerly from the tip of Baja California. I have seen material, 

 collected by Anthony and by Barkelew, from San Benedicto, Clarion, 

 and Socorro islands. The plant is mentioned as " Fimbristylis sp." 

 by Brandegee (Zoe, 5:27-28. 1900) and by Vasey and Rose (Proc. 

 U. S. Nat Mus., 13:145-149. 1891). 



