Juncus. ]()\ 



Subgen. V. Junci septati Buchenau. 



Oxophyllum Dumort. 1. c. — Steirochloa Griseb. 1. c. 407 pr. pte. — Articulati 

 Fries, 1. c. 65 et squarrosi, 66 pr. pte. (J. pygmaeus). — Arthrophyllum et Cephalophora 

 K. Koch 1. c. 627. — Phylloschoenus Fourr. 1. c. 171. 



Species fere omnes perennes , duae tantum annuae : /. pygmaeus et faseiculatus. 

 Inflorescentia capitulifera*) composita usque supradecomposita ; capitula pauci- usque 

 multiflora. Caules plerumque etiam superne foliati. Lamina teres, vel plus minusve a 

 latere compressa, interdum ensiformis, uni- vel pluritubulosa, septis perfectis externe 

 plerumque conspicuis intercepta. Fructus plerumque uniloculares, raro triseptati vel 

 triloculares. Semina parva, plerumque nucleo conformia, raro caudata vel scobiformia. 



V. etiam /. allioidem, ehrysocarpum et Orisebaohii sub ./. alpinis. 



§ 25 usque 44. — Spec. 61 usque 143. 



Subgen. VI. Junci alpini Buchenau. 



Stygii Fries, 1. c. 66 pr. max. pte. — Stygiopsis (Gandoger 1890) 0. Ktze. iu 

 T. v. Post et 0. Ktze. 1. c. 



Perennes. Folia diversa, plerumque angusta, canaliculata, rarius plana, saepe 

 teretia vel filiformia, uni- vel pluritubulosa, indistincte septata (in J. allioide, mern- 

 branaceo, Orisebachii et chrysocarpo septa externe plus minusve conspicua; folia plana r 

 graminea in J. Clarkei et minimo occurrunt, in J. castaneo saepe convoluta). Auriculae 

 plerumque conspicuae (in J. biglumi parvae, in leueomelane, minimo et castaneo desunt). 

 Inflorescentia capitulifera, simplex vel modice composita; capitula pauci- usque pluri- 

 (raro multi-)flora. Flores conspicui, saepe magni, albi, flavidi vel intense colorati; 

 tepala saepe angusta. Stamina 6, saepe exserta. Semina basi et apice caudata vel 

 scobiformia (in J. stygio cuneato-trigona vel cuneato-cylindrica). 



§ 45 usque 55. — Spec. 144 usque 168. 



Subgen. VII. Junci singulares Buchenau. 



Singularia 0. Ktze. in T. v. Post et 0. Ktze. 1. c. 



Perennis. Caules ancipiti-compressi, scapiformes. Lamina subcylindrica, a latere 

 compressa in statu sicco fere anceps (medulla continua parenchymatosä repleta, a tubulis 

 numerosis periphericis perducta). Inflorescentia supradecomposita, anthelata; capitula 

 6- usque 1 0-flora. Stamina 6, tepala ca. dimidia aequantia; antherae lineares, fila- 

 mentis linearibus ca. duplo longiores; stilus longus. Fructus trilocularis. Semina ca. 

 0,4 mm longa, oblique obovata, breviter apiculata. 



§ 56. — Spec. 169. 



Subgen. VIII. Junci graminifolii Buchenau. 



■»Cephaloxys Spreng. (Desv. 1808)« T. v. Post et 0. Ktze. — Squarrosi Fries, 

 1. c. 66 pr. pte. (/. capitatus). — JuncineUa Fourr. 1. c. (1869). 



Perennes vel annui. Inflorescentia capitulifera; capitula plerumque pauci- vel pluri- 

 (raro multi-)flora. Lamina fere semper graminea, plana vel canaliculata (exceptioneni fecit 

 ./. ochraceus, rectius ad' Juncos alpinos transferendus?). Caules nunc basi tantum, 

 nunc etiam superne foliati. Stamina 3 vel 6. Fructus uniloculares, triseptati vel saepius 

 triloculares. Semina fere semper nucleo conformia, apiculata vel mutica (in ./. Eegelii 

 scobiformia, in J. ochraceo et sparganiifolio ignota). 



§ 57 usque 66. — Spec. 170 usque 207. 



*) In J. depawperato Philippi (austro-americano) flores singuli longius pcdunculati saepius 

 in axillis foliorum frondosorum, rarius distincte capitati ; in J. inconspicuo Dumont (magellanensi) 

 flos singulus terminalis restat. 



