24 Acta Societatis pro Fauna et Flora fenuica. I. 



sime et parcissime setoso-pilosa. Pili longiuscnli, strict! et sur- 

 sum nutantes (patentes), rigidi, cylindrici, obtusi, teretes, margi- 

 nales fasciculatim terni — seni, raro gemini, et inter se divergen- 

 tes, nonnulli in apice suctorio-ramosi. Caulis concolor, sat tennis 

 et rigidus, faciebus ambabus, in eadem postica tamen mnlto raa- 

 gis, prominens, a circiter 20 cellnlis (in sectione transversa ellip- 

 tica frondis) parviusculis, valde incrassatis et inanibus constrnc- 

 tns, antice a 2 cellnlis multo majoribus, postice tamen a 7 — 3, 

 vnlgo 6 — 4, cellulis minoribus, nt sa^pe indistinctis, laxis et cblo- 

 ropbylliferis obtectus. Cellulce alarum foliacearum omnes confor- 

 mes, 0,05 — 0,04 mm., sat regulariter qninqn- vel sexangnlares, vix 

 incrassatse, lsevissimse, marginales rectilineata 3 . Perichcetia in ipso 

 margine alarum et postice nbiqne, pra?sertim ad basim, a pilis 

 longis, densissimis, strictis et divaricatis, eisdem marginalibus s?epe 

 binis vel fasciculatim terms, ornata. Calyptra (vix matura solum 

 visa) obovato-subglobosa, ubique conformiter pilos numerosissimos, 

 densos et longos, strictos et divaricatos gerens. Androecia? 



Autoptse judicent, num ne Jungermania ciliifera Schwein. hsec 

 nostra species sit, quo casu Metzgeria ciliifera nominanda. Descriptio 

 etenim /. c. in libello nunc rarissimo Schweinizii ad formam M. my- 

 riopoche parvam et nulla vestigia organuni generativorura gerentem, 

 qualis in opere et Drummondii et Sullivantii adest, sat bene quadrat, 

 ut verba data sunt: "/. froncle lineari anguslissima, ramosa, exlremi- 

 tatibus non furcatis seel siibbifidis, laciniis attenuatis, subenervi, mar- 

 gine frondis, lobis spathulatis, clavatis et difformibus, interdum stolo- 

 niformibus, intermixtis ciliis, ornato. v. v. — A new species, forming 

 dense tufts along rocks and earth, from which it is easily separa- 

 ted. Though allied to the two former (J. furcata and J. pubescens), 

 it is manifestly distinct by the curious margin of the very narrow 

 and tender frons. The fructification has not hitherto been observed 

 by me. It is smaller, and af a more delicate construction than the 

 rest. The color green or yellow — no pubescence except the inter- 

 spersed ciliae of the margin" 



A non minus quam 5 speciebus diversis tali modo componitur JA 

 furcata Nees. Nat. cur. Leb., 3, pp. 485—503 (1838): 

 a. externa (p. 485) — M. linearis, myriopoda et hamata; 

 /3. communis 1. major (p. 487) = M. conjugata (et hamata?)) 



* albescens (p. 487) = M. conjugata; 

 /3 2. minor (p. 487) = 7)7. furcata vera et conjugata; 



