54 ICONES MUSCORUM. 



ATRICHUM PARALLELUM, Ilitten. 



Tab. 38. 



Plants laxe csespitosae, atro-virides. 



Caulis simplex, vix poUicaris, durus, rectus. 



Folia erecto-aperta, superiora lingulato-lanceolata, infenie 

 cellulis oblongis superne rotuudatis areolata, ultra basin subiii- 

 tegerrimam laevem argute dentata, dorso laminis deiitiformibus 

 nervo lamellato percurrente parallelis, nervo etiam dorso la- 

 mellis circiter tribus serratis carinato : folia inferiora oblonga, 

 breviora, obtusiora ; perichaetialia e basi oblonga convoluta, 

 sensim augustata, lanceolata. 



Flores dioici : masculi in plantis gracilioribus terminales, 

 anthoidei. 



Capsula in pedicello elongato cyliudracea, curvata, sub ore 

 coarctata, basin versus ventricosa. 



Atrichum parallelum, Mitten in Proc. Linn. Soc. 8, p. 48. 



Hab. Grande Cote, Rocky Mountains, Drummond, mixed with 

 the following species. 



Size and habit of A. undulatum, L., but capsules more ven- 

 tricose below. The parallel disposition of the tooth-like processes 

 on the back of the leaves and the cristate nerve suffice to distin- 

 guish this species from A. undulatum, with which it was con- 

 founded by Drummond. 



TAB. 38, — Atrichum parallelum. 



1. Plantae mascula; et femineaj nnttp- 5. Areolatio apicialis folii. 



rali mafjnitudine. Cv 7. Capsula plena et vacua, sicca. 



2. Pars caulis cum foliis. 8. Pars peristomii. 



3. Folium caulinum. 9. Flos masculus, folium perlgoniale, 



4. Eju.sdem sectio transversalia. antheridium, et paraphysis. 



