Equisetaceae. 461 



In unibrosis humidis regionis infex'ioris et montanae. Epirus: pr. 

 Prevesa, Philippiades (Form.); Thessalia: pr. Vitomo (Sint.), Malakasi, 

 mt. Zygos (Haussk.), Velitsena, Chilziades, Han Kuraneos (Form.) in 

 Pindo, ad Chiladomuli jir. Litochori in Olympo (Sint.); Attica: in valle 

 Cephissi superioris pr. Chelidonu (Heldr.); Peloponnesus (Sibth.): mt. 

 Kupe, pr. Manglava, Ligondista, Phigalea (Chaub.); Zacynthus (Sibth.): 

 ad sinum Chieri (Marg.); Corcyra: pr. Corfu, Potamos, Evropuli, Afra 

 (Form.). — IMart. Apr. 2|.. 



2. E. arvense L. sp. p. 1061; S. et S. pr. H. p. 269; Bois. fl. 

 or. V. p. 741; Form. in D. bot. Mon. 1890 p. 4. — Icon: Fl. dan. 

 t. 200L 



Caulium fertilium vaginis turbinato-tubulosis, superne scariosis, in 

 6 — 10 dentes lanceolatos fissis, spica obtusa; caulibus sterilibus vui- 

 dibus, 6 — 19 costatis, verticillato-ramosis, ramis simplicibus vel ramu- 

 losis, vaginis caulium 8 — 12 dentatis, ramorum, 3 — 5 dentatis. — Prae- 

 cedenti omnibus partibus gracihus. 



In agris, pratis humidis regionis inferioris et montanae. Thessalia: 

 pr. Selicany in mt. Ossa (Form.); Arcadia, Elis (Sibth.). — Mart. 

 Apr. 2\,. n'. V. 



jS. Caules coetanei, fertiles albicantes vel rubentes, fructifi- 

 cationis tempore simplices vel ramis brevissimis instructi, 

 demum spica emarcida ramosi et cum caulibus sterilibus 

 viridibus, ramosis persistentes. 



3. E. silvaticum L. sp. p. 1061; S. et S. pr. II. p. 269; Bois. 

 fl. or. V. p. 741. — Icon: Fl. dan. t. 1182. 



Caulibus fertilibus coetaneis, denudatis, 10 — 18 costatis, demum 

 spica obtusa, emarcida ramosis, ramis caulium fertilium steriliumque 

 dense verticiHatis, verticillatim ramulosis, apice arcuato-nutantibus; va- 

 ginis caulium turbinato-tubulosis, scariosis, in lacinias 4 — 6, late-lanceo- 

 latas fissis, ramorum tridentatis, dentibus subulatis. 



In irriguis umbrosis (Sibth.), siue loci specialis indicatione. — Apr. 

 Maio. 2\.. N. v. 



b. Caules fertiles et steriles conformes. 



4. E. palustre L. sp. p. 1061; S. et S. pr. IL p. 270; Ch. et 

 B. exp. p. 281, Fl. pelop. p. 66; Bois. fl. or. V. p. 742; Hal. beiti-. 

 fl. Epir. p. 44, Beitr. fl. Achaia p. 35. — Exsicc: Heldr. pl. fl. hellen. 

 a. 1891. 



Caulibus jirofunde 6 — 8 sulcatis, viridibus ineunte hyeme emorien- 

 tibus, ramosis vel raro simplicibus, ramis simplicibus vel ramulosis; 

 vaginis caulium subturbinatis, in 6 — 8 dentes lanceolatos, nigros, late 

 albo-marginatos abeuntibus, vaginis ramorum 5 — 6 dentatis; spicis vel 

 tautum unica terminah, vel ad ramorum superiorum apicem quoque 

 sitis, obtusis. 



In humidis regionis inferioris et montanae. Epirus : pr. Theodo- 

 riana (Hal.); Attica: pr. Kephissia, Chelidonu (Heldr,); Achaia: pr. 



