50 CHILI. [Grammes. 



2. CAREX. Linn. 



1. C. hebecarpa; culmo triquetro scabriusculo, foliis margine scabris, bracteis foliaceis 

 elongatis inferiore vaginato superioribus evaginatis, spicis sterilibus 2 vel 3 sessilibus, 

 squamis oblongo-lanceolatis fertilibus cylindraceis acutis superioribus subsessilibus infima 

 pedunculata, pedunculo vagina duplo longiore, squamis subulatis fructum lanceolatum 

 striatum hispidum rostro bifido glabro aequantibus, stigmatibus 3. 



Hab. Conception. — Very closely allied to C. riparia, from which it differs by its narrower scales and 

 much more attenuated fruit, which is covered with short papilla or scabrous points. Of the sterile spikes, 

 the lower scales are oblong and mucronate, but the membranous portion becomes shorter and the mucro 

 longer towards the extremity of the spike, so that at the top the scales are nearly as in the fertile spikes. 



3. UNCINIA. Pers. 



1. U. phleoides; spica cylindrica superne mascula, fructibus 3-fariam arete imbricatis 

 lanceolatis triquetris apice ciliatis, aristis hamatis elongatis. Spr. — Pers. Syn. PL v. 2. p. 534. 

 Cav. Ic. v. 5. t. 464. / 1. 



Hab. Conception. 



Ord. LXX. GRAMINEiE. Juss. 

 1. TORRE SI A. Beauv. 

 1. T. magellanica; panicula effusa subnutante, glumis uninervibus carina laevibus, flos- 

 culis masculis aristatis pubescentibus dorso margineque ciliatis villis subcurvatis herma- 

 phrodite mucronulato, foliis planis. Roem. et Schul. Syst. Veget. v. 2. p. 516.— Melica 

 magellanica. Desv. in Lam. Encycl. — Hierochloe antarctica. Br. Prodr. Fl. Nov. Holl. v. 1. 

 p. 209. — Disarrhenum antarcticum. Labill. Nov. Holl. v. 2. p. 83. t. 332. — Holcus redolens. 

 Forst. Prodr. n. 563? 

 Hab. Conception. 



2. AIRA. Linn. 

 1. A. caryophyllea. Linn. ? 

 Hab. Conception. 



3. POLYPOGON. Desf. 

 1. P. monspeliense. Desf.— Alopecurus monspeliensis. Linn.— Agrostis panicea. Willd.— 

 Engl. Bot. t. 1704. 



Hab. Valparaiso.— Polypogon australe of Brongniart, in Duperrey's Voy. p. 21, appears to be only a 

 variety of the present. 



4. CALOTHECA. Beauv. 

 1. C. stricta; culmo scabriusculo, foliis convolutis scabris, panicula subsimplici coarctata, 

 spiculis ovatis erectis 7-floris, glumis calycinis ovatis rotundatis 3-5-nervibus glabris corol- 

 linis glabris nitentibus, exteriore duplo majore subrotundata acutiuscula mutica. 



Hab. Conception.— This is closely allied to the C. rotundata, Roem. and Schul. (Bromus rotundatus, H. 

 and B.) and also to Desvaux's Chascolytrum erectum, whose panicle has the branches simple. The species 

 referred to these two genera by Reamer and Schultes, are in great confusion. Thus, their Calotheca rotun- 

 data is a Chascolytrum. The Cal. brizoides, Beauv., is not the plant of Desvaux, or of Roemer and Schultes, 



