354 



§ I. VEKXAL1A ,4. lirait». L c. 



Gaules dimorpbi; fertiles praecoces, simplicissimi, cito 

 pereuntes, stériles seriores ramosi persistantes. Ledeb. L c# 



1366. Equisetum arvense Linn. 



Gauîium fertilium vaginis turbinato- tubulosis superne 

 scariosis in dentés 8 — 10 lanceolatos acutos passim cobae- 

 rëntes fissis; eaulibus sterilibus verticillato-ramosis, ramis 

 3 vel 4 angularibus simplicibus ramulosisve, vaginis ip- 

 sorum 3 vel 4 dentatis; spica obtusa. Ledeb. L c. p. 486. 



E. arvense Linn. sp. 4346. A. Br. I. c. — Koch syn. éd. 2. 3. 

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



Unique in pratis vulgatissimum, primo vere fructificans, % . 



§ 2. SLBVEHNALIA A. Braitn. 1. c. 



Gaules dimorpbi; fertiles coaetanei, fructificalionis tem- 

 pore simplicissimi vel ramis brevissimis inslructi , deiu , 

 spica cuin pedunculo emarcida , ramosi una cum sterili- 

 bus aesîatem perdurantes. Ledeb. 1. c. p. 481 . 



1367. Eqlisetim sylvaticum Linn. 



Ramis dense verticillatis arcuato-nutantibus tetragonis 

 verticillato-ramulojfc, ramulis triquetris, vaginis caulinis 

 turbinato-tubulosis scariosis superne lobato-fissis denta- 

 tisve, ramorum 4 dentatis, ramulorum 3 dentati : denti- 

 bus subulatis. Ledeb. L c. 



E. sylvaticum Linn. sp. 1316. A. Br. i. c. Koch syn, p. 964. 

 Ledeb. fl. Alt. IV. p. 321. 



In pratis sylvaticis cum priore, eodrmquo tempore fructi- 

 ficat. % . 



