170S CRYPTOGAMIA. FILICES. 1903, Equifeturq. 



circinsh. Leaves 2-rowed, imbricate ; fuperficial-ones in pairs : 



branches convolute. Dill t 67. f. n. 

 Jtoloniferum. Leaves 2-rowed, fpreading ; fuperficial-ones oblong, 



acute, 2- ranked : moots fquare, creeping, naked and ftoloniferous 



below Dill t. 67 / 10. 

 ornithopodicides Leaves. 2-rowed, fpreading; fuperficial-ones 2- 



ranked, ciliate : moots creeping : fpikes roundilh, fciUle, 



Dill t. 67./ 10. 

 plumofum. Leaves 2-rowed, imbricate, gibbous one fide at the bafe ; 



fuperficial ones femiovate, ciliale, with a fmall tip : (hoots nearly 



erect, forked ; fpiks terminal, fertile, fquare. Dill t. 67./. 8- 

 ciliare. Leaves 2-rowed; fuperfic at ones 2- ranked, ciliate : Hem 



branched : fpikes leafy, compreifed, on one fide. Retz.fafc. 5. ' 

 helveticum. Leaves 2-rowed, fpreading ; fuperficial-ones 2-ranked : 



moots creeping, forked: fpikes bifid, peduncted. Dill. /• 65. /. 2. 

 denticulatum. Leaves 2-rowed, fpreading ; fuperficial-ones imbn- 



cate: moots creeping: fpikes in pairs, feffile. Dill. t. 65./. i.A« 

 apodum. Leaves 2-rowed^ alternately !efs : Hem crcepiug : fpikes 



moftly in pairs, feffile. DHLt. 65 /. 3. 

 depreJJ'um. Leaves 2-Vowed, alternate, denticulate, fpreading, fuper- 

 ficial-ones 2 rowed, nearly equal, ciliate : fpikes oblong, leflile, 



leafy. Swart. 



1903. EQUISETUiM. Anient, compofed of peltate fcales. 

 flowering on the inflde : involuceh 2 valved : feeds nume- 

 rous, naked, enfolded by 4 polien- bearing filaments. 



Morfe tail* 



* fylvaticum. Branches compound, curve-deflected, rough. 



Bolton fil t. 32. 33. 



* arvenfe. Barren (terns every where branched ; branches roughilh ,; 



fertile-ones fimple : (heaths diftind, broadly cut. 

 Curt. Lond, 4. /. 64. 



* palujtre. Fertile Items angular, branched ; branches fimple, ereel, 



roundifh. Bolt- fil. / 35. 



* fuviatile. Barren items with numerous roundifh branches; fertile- 



ones fimple : (heaths approximate, in many fetaceous divifions. 

 Bolt. fil. t. 36. 37," 



* limofum. Stem part'y naked, and with the branches imooih: amen^ 



terminal. Eng. Bot. t. 929. 



* hyemale. Stem naked, very rough, moftly branched at the bafe : 



fheaths whitifh in the middle, black at the top and bafe : araen^ 

 terminal. Enjr.Bot.'t. 915. Shave-grafe. 

 fraterije. Stem branched, grooved, very rough ; branches much 

 ipread, barren : (heaths with fubulate fcirious teeth. 

 Jiannov. Mag* 1784. 9. 



