L H58 ] 

 Xykis Operculata. Cap-Fruited Xyris* 



Clufs and Or Jen 



TlUANDRIA MONOGYNIA. 



Generic Charaf/er. 

 Cor. 3 petala, aequalis. Glum. 3- valves cartilagincae in ca- 

 pitulum. Cap/, fupera unilociilaris. Vahl. Ennui. 2. 204. Cat, 

 Gimme 3 cartilagineae, nitidiE, insequales : una cxteriore 

 maxima, ovato-rotundata, concava • duabus interioribus ar- 

 cuatis, naviculari-comprefiis, apicc demiculatis. Cor. tripetata. 

 Stmtu 3. Sly!, unicus. Caff, fupera, unilocular^ ad angulos 

 rima dehifcens. Sent, parictalia. G<ertn. Sent. 1. p. 52. Cap/. 

 fupera, trilocularis. Labill. Nov. Holl. 1. 14. Caff, oblonga 

 unilociilaris trivalvis. Sem. nonnulla, oblonga, receptaculo 

 columnari fuis pedicellis inferta. Ruiz el Pavon. FL per 2. 46. 



Obs. Folia 'radicalia, baft vaginantla, enfiformia, /capo hreviora, gla- 

 berrima y /iriata. Scapi ereiti, fimplicijjimi, glabri. Capitulum terminale, 

 /Jitanumy imbrication , /quumh • /erruginei s , margine diluticribus. Vahl. 1. c. 



Specific Character and Synonyms. 



XYRIS operculata; (plant a cje/pito/a t rigens ; radix, fibre \fa ,-,) 

 foliisduriufculisjcomprefro-fenforinibus, (hie inde two 

 tortoj deorfum equitanter conduplicatis vaginis ra- 

 dicalibus convoluiis flipatis; fcapo duplo longiori 

 ancipiter filiformi ; capitulo fubglobofb ; fquamis 

 fubputamineo-duris, obtufiffimis ; fpatha e val-vulis 

 tribus, binis glumaccis oppofitis, altera media difformi 

 caduca ; corollae laminis obovato-rotundis, margine 

 demiculatis; ftaminibus fingulis feta longiori peni- 

 cillatim capitata a bafi appendiculatis ; fligmatibus ex 

 angufte cucullatis in laminas rotatim expanfas fim- 

 briatulas ampliatis ; capfula operculata. G. 



XYRIS operculata. Labill. Nov. Holl. 14. /. 10. Dry and. Chlor. 

 Nov. Holl. in Ann. 0/ Bot. v. 2. 305. 



XYRIS anceps. Vahl. Enum. 2. 205 .<? 



Desc. Plant perennial, herbaceous, cefpitofe ; root fibrous ; 

 leaves comprefTcd-fetiform, upright, thickifh, harfh, here and 

 there one fpirally twilled, downwards conduplicate, equitant, of 

 a deep purple colour (according to Labi li.ardi pre, villofe 

 wiihii?)» with feveral membranous convolute root -/heaths about 



an 



