22 U R A C H N E. Botanifjne. 



Piptatherum Lindleyanum N. ab Es. in Act. LeopoUl. (18Vi) p. 17 

 flW) e Valparaiso a Cumingio lectum quoad descript et diagnosin 

 non diffcrt. 



Ghile (Cuming!) in pasruis sylvalicis saxosis collium pr. Quillota 

 (Bcrtero!) ct in aridis monfanis pr. Concon (Poppig!). Scpt. Octobr. 



Culnii tenues, 1 — 2 podalcs. Ligula br(!vipilosa vcl subglabra. Va- 

 riat culmo ramoso et pumilo, caryopsidlbus ustilagine corruptis. 



18. Urac/ine oblusa n. Paniculac linearis, oontractae, depauperatac radiis brc- 

 vissimis a basi spiculigeris; glumis obtusiusculis, sublinealibus; flos- 

 culo oblongo , glumas subaequnnte vel paullo breviore , nudo et 

 scabriusculo; arista lcnui, subrccta, non torta, glumis triplo I. qua- 

 druplo longiore. 

 Piptat/ierum obtusum Nces in Mcyen itin. 2 (1835) p. 32 solum no- 

 men. Necs ab Es. Act. Leopold. (ISVI) p. 18 (l.^JO) ubi dcscriptio. 



Pcruvia: in planilic alta ad Arequipam 12 — 13000 ped. (Meyen!) 

 Scptemb. 



S. V. Piploc/inHium Presl 1830. (Caryocbloa Sprcngel 1827 non Trin. 

 1826.J Flosculi obovati, binc gibbi, a latcribus qtiidpiam compressi, dor- 

 so bicarinati, striati ve! verrucosi. Arista firma, lalcralis. — Species in- 

 primis chilenses ad Brasiliam meridionalem usquc propagatae; per U. 

 setosam in Stipas: intermediam et*bicoIorcm naturalitcr transcunt, sed 



, in ipso hoc limitc adhuc U. setosa et stipoides (cujus arista jam evi- 

 denter torta) callo dcpressissimo subannulari a Sti|)a bicolori afiinibus- 

 que scparanda. 



19. Urac/me simplex n. Paniculae dcpaupcratae scsquipollicaris radiis 2 — 3-nis, 

 a basi fere spiculigcris; glumis late ovatis, acuminato-cuspidatis, 

 subsesquilinculibus; flosculo obovato, hinc gibbo, lincali, ad callum 



