200 CHLORIS MELVILLIANA. 



infra vaginis petiolaribus emarcidis nervisque foliorum 

 denudatis obsitus, supra dense foliatus. Folia opposita 

 basi connata, subulata, acuta, mutica, super concaviuscula, 

 subter convexa, trinervia, marginibus nudis. Pedunculi 

 ccixxii] terminales solitarii, uniflori, prope basin bibracteati, 

 hradeis lanceolatis, seniifoliaceis margine membranaceo, 

 pubescentes pilis brevibns, porrectis, glanduloso-capitatis, 

 numerosis. Calyx 5-partitus, sepalis lanceoloatia, acutis- 

 simis, vix acuminatis, concaviusculis, trinerviis, viridibus 

 nunc fusco-purpureo tinctis margine albo membraiiaceo, 

 extus pilis nonnuUis brevissimis minute capitatis conspersis, 

 persistens. Petala 5, integerrima, alba, calyce paulo bre- 

 viora, ovali-oblonga v. elliptica, integerrima, basi parum 

 attenuata, persistentia. Slamina decem, margini disci 

 brevissimi subcarnosi, dubise originis, perigyni potins qnam 

 hypogyni, inserta. Mlamenta subulato-filiformia, glabra. 

 Antherce ochroleucse, subrotundse, loculis approximatis, 

 appositis, longitudinaliter dehiscentibus. Ovarium sessile, 

 ovatum, glabrum, uniloculare, polyspermum. Stiff mata 

 quatuor (passim 3 et 5) filiformia, alba intus longitudinaliter 

 hispidula. Capsula calyce persistenti appresso ssepius paulo 

 longior, nunc eundem subgequans, quadrivalvis, passim 3 et 

 5-valvis, valvis vix omnino ad basin distinctis. Beceptacii- 

 lum seminum centrale, longitudine fere capsulse, cum apice 

 cavitatis prime connexum mox solutum. SeminaTrnxiorvixm, 

 Isevia, fusca, funiculis umbilicalibus cum receptaculo com- 

 muni persistentibus. 



20. Arenaria Rossii, glaberrioia, foliis triquetro subu- 

 latis obtusiusculis muticis enerviis florem vix sequantibus, 

 pedunculis unifloris elongatis, petalis oblongis calyces 

 obsolete trinervios paulo superantibus. 



Desc. Herba pusilla, glaberrima. Caules ramosissimi, 

 caespitosi, dense foliati. Folia opposita basibus connads, 

 carinata. Pedunculi foliis aliquoties longiores. Cali/x 

 5-partitus, purpurascens ; sejKila aequalia, ovata, acutiuscula, 

 modice concava, obsoletissime trinervia, marginibus mem- 

 branaceis nudis. Petala 5, angusto-oblonga, obtusa, integra, 

 alba, calyce paululum longiora. Stamina 10. Filamenta 



