//('/lal/cd' of Xorl/i Allicricd. ."iO 



4. M. conjugata Liiulb. Monoecious; tliallus 3.5 cm. 

 long", 1 — 2 mm. wido, commonly dichotomous, the branches 

 short, linear, narrower in some parts, convex above, the mar- 

 gins more or less distinctly undulate, the midribs and margins 

 pilose with rather long, straight, divaricate hairs; the hairs 

 usually double and very frequently with sucker-like branches 

 at their extremities; midribs covered above with two, below 

 with 3-0 rows of enlarged lax cells. (ErJihiof/i/iia fiireaia, 

 Dumort., Mefzfjcria furcafa Dumort. in part.) 



Hah. — On shaded siliceous rocks and trunks of living trees, etc- 

 CatskiU Mts., N. Y. (P. T. Clere), Cal.? {Bolander). (Eu.) 



Bih.—lAxidh. Monog. Metzg. n. 8, f . 6 ; Hep. Europ. p. 139 (sub. M. 

 furcata). 



Delin.'-BYit. Jung. t. 56, f. 2; Ekart, t. I, f. 1. 



E'.csic.— Hep. Bor.-Amer. No. 117. 



VI. FOSSOMBRONIA Raddi. 



Involucral leaves ')-(), minute, subulate, coherent with the 

 perianth almost its entire length. Inner involucre terminal or 

 by innovation dorsal on the main stem, subcampanulate, the 

 large mouth open, crenate-lobed. Calyptra pear-shaped, rup- 

 turing early. Capsule globose, irregularly 4-valved. Elaters 

 short, uni-trispiral. Androecium naked, borne on the back of 

 the stem. Vegetation pseudo-foliaceous, the lobes of the thal- 

 lus-like stem leaf-like, succubous, somewhat Ciuadrate, 3-5 lobed. 

 flaccid. Named for »S'/r/. Car. Vifforio Fo.^><oi)ihroi)i^ an Italian 

 minister of state. 



* Leaves mosthj honzontaJ. 

 f Plant medium size or large. 



1. F. pusilla Nees. Plant small; stems 1.3 — 2.1 cm. 

 long, usually subsimple yet forked-divergent or subdichotomous 

 at the apex; leaves obliquely spreading, the lower undulate- 

 lobed, the lobes barely mucronate, the upper angular, 3-4 lobed. 

 crisped, the lobes narrower; inner involucre obconic. dentate; 

 crests of the spores angular, subparallel. (Jioifjeniiaiiid jm- 

 silJa L.) 



Hab. — On damp ground, mostly in unfrequented paths. (Eu.) 



Bib.— Syn. Hep. p. 4G7 ; Hep. Euro]), p. 14. 



Drlin.— But. Jung. t. G9 ; Ekart t. V, f. 38 ; SiiUiv. :\rosses T^. S. t. 

 VII. 



.Ki-.'^ic.— Hep. Bor.-Amer. No. 120. 



