071 the Genus Juncus of Linnaus. 323 



Stem a little bulbous at the base, decumbent, striking root at the 

 joints, generally a few inches in height, cylindrical, fistulous. 

 Leaves at the root filiform, articulate ; those of the stem larger, 

 subulate, knotty-jointed, brittle, springing from a large scariose 

 sheath. Flowers in a corymb, as if proliferous, fasciculato-ver- 

 ticillate, light-brown. Cali/x-leaJIcts lanceolate, acuminate, stri- 

 ated, rigid. Capsule obtuse, light-brown, not longer than the 

 calyx, somewhat shining, mucronate. 



Though I am not enabled to ascertain many modern synonyms 

 with certainty for this common plant, I feel confident that it will 

 be found on examination to be a good species. The French bo- 

 tanists give it the above name in their herbaria. Rostkov, Will- 

 denow, and most others seem to have considered the J. uliginosus 

 of Smith and this to be the same. Sibthorp's description of 

 uliginosus corresponds so nearly with it, that I think he had an 

 eye to it in drawing up his specific character — " Floribus fasci- 

 culatis, fasciculis proliferis,foliis setaceis articulato-nodosis." Wi- 

 ihering's definition is also applicable to this. Haller's no. 1321. 

 is most likely intended for it — " Foliis sessilibus articulatis, pani- 

 cula simplici, gluniis aristatis." And Parkinson's figure 1189 

 tolerably corresponds. 



19. Juncus acutiflorus. 



Juncus foliis nodoso-articulatis, panicula terminali supradecom- 

 positA,calycisfoliolis omnibus lanceolatis acuminatis capsulam 

 acuminatam aequantibus. 



J. foliis compressiusculis panicula terminali supradecomposita 

 diffusa, calycis foliolis omnibus lanceolatis acuminatis, capsula 

 ovato-oblonga triquetra mucronata, culmo 3 — 4-folio. Davies, 

 Linn. Trans, x. 13. 



VOL. XII. 2 u J. foliis 



