60 MR. J. BALL OX THE FLOBA 



striatis parum inflatis, liiubo brevissimo, canalicatato, inargine in- 

 volute ; ligula bifida, lata, oblique truncata, culmum amplectente ; 

 panicula contracta, bipollicari; pedicellis pilosiusculis ; glumis 

 sterilibus subsequilongis, ^cariosis, in carina scabriusculis, gluma 

 fertili sterilibus dimidio breviore, cartacea, flosculum arete invol- 

 vente, pilis basilaribus subduplo longiore, medium versus arista 

 dorsali torta ipsa gluma duplo longiore munita ; palea hyalma, 

 biuervi ; rhacbilla ultra florem in setam penicillatam glumsD fertili 

 sequilongam producta. 



B, Weddell in Bull. Soc. Bot. Er. xxii. p. 176 (spbalmate typo- 

 graphi, 156) species Andinas generis Deyeuxim 60 enumeravit, et 

 clavem analytieam adjunxit. Descriptiones fusiores specierum 

 novarum 37 a Weddelio propositas eel. auctor, morte prematura 

 abreptus, nunquau) publici juris fecit, et plurimarum specmnna 

 in berbariis Anglicis desuat. Et^vi plauta nostra Casapaltensis 

 speciei nulli descriptae convenire videtur, nolui nomen liovum 

 proponere. Caracteres e ligula desumptas, in boc genere ad 

 species definiendas utilissimas, in clavi analytica supra citata 

 auctor pr^etermisit. 



Deschampsia Mathewsit, n. sp. Above Casapaltal 



Csespitosa, glabra ; culmis numerosis, erectis, 3-6-polliearibus, 

 superne nudis, basin versus foliorum vaginis striatis subiuflatis 

 vestitis; foliis rigidis, auguste linearibus, subcanalieulatis, muticis^, 

 eallo cartilagineo apiculatis ; ligula brevi oblongo-ovali ; panicula 

 parvge ramis paucifloris; spiculis bifloris ; glumis sterilibus sub- 

 ^qualibus, ovato-lanceolatis, acutis, in carina scabriusculis ; gluma 

 fertili hyalitia flosculum involvente ; palea oblonga, apice lacera; 

 rbachilla glabra ultra flores bievissime producta. 



The same species, Avitb the outer glumes slightly shorter 

 and less acute, was long ago collected by Mathews in the Peru- 

 vian Andes. His specimens in Kew Herbarium are numbered 

 6S9. 



I collected above Casapalta a single specimen of a DescTimnpsia 

 differing from the species above described in several respects; but 

 all the flowers examined were abortive, and I believe it to repre- 

 rent merely a diseased condition of the same species. 



Melica ? Chick ! A single incomplete specimen draWQ 



■with some difficulty from amidst a group of thorny bushes. The 

 flowers much resemble tho^ie of Jf, laxiflorUy Cav. ; but the leaves 



