67 



% 1> VERNALIA A. Braun. L c. 



Caules dimorphi; fertiles praecoces, simplicissimi, cito 

 pereuntes, stériles seriores ramosi persistentes. Ledeb. L c. 



1366. EquiSetum aryense Linn. 



Caulium fertilium vaginis turbinato - tubulosis superne 

 scariosîs in dentés 8 — 10 lanceolatos acutos passim c oh aè- 

 re ri te s fissis; caulibus sterilibus verticillato-ramosis, ramis 

 3 vel 4 angularibus simpiicibus ramulosisve, vaginis ip- 

 sortfm 3 vel 4 dentatis; spica obtusa. Ledeb. I. c. p. 486. 



E. arvense Linn. sp. 1346. A. Br. I. c. — Koch syn. ed. 2. 3. 

 p. 964 Ledeb. fl Alt. IV. p. 320. 



Ubique in pratis vulgatissimum, primo vere fructificans, % . 



% 2. SUB VERNALIA A. Braun. L c. 



Caules dimorpbi; fertiles coaetanei, fructificationis lem- 

 pore simplicissimi vel ramis brevissimis instructi , dein , 

 spica eu m pedunculo emarcida , ramosi una eu m sterili- 

 bus aestatem perdurantes. Ledeb. I. c. p. 487. 



1367. Equisetcm sylvaticum Linn. 



Ramis dense verticillatis arcuato-nutantibus tetragonis 

 verticillato-ramulosis, ramulis triquetris, vaginis caulinis 

 turbinato -tubulosis scariosis superne lobato- fissis denta- 

 tisve, ra m or ii m 4 dentatis, ramulorum 3 dentatis: denti- 

 bus subulatis. Ledeb. L c. 



E. sylvaticum Linn. sp. 1346. A. Br. I. c. Koch syn. p. 964. 

 Ledeb. fl. Alt. IV. p. 324. 



In pratis sylvaticis eu m priore , eodemque tempore frucli- 

 ficat. % . 



5* 



