1855.] 417 



ramosus ; rami tenues flexuosi, ramulis tennibus irregulariter depositis, apice 

 arctuissime subpinnatis uncinates ; folia caulina dense imbricatula falcato- 

 secunda, lonze-lanceolala subulata e basi in acumen longum sensim attenuata 

 planiuscula vel leviter undulata, margine Integra, nervo crasso ante apicem 

 evanido ; foliis ramulosis subulatis longisetaceis falcatis, cellulis augustissimis 

 linearibus, elongatis, pellucidis, luteseentibus, (Flor. et fruct. non Yisis.) 



Hab. Submerged in ' { Ethan's pond, " Willey Mountain, White Mountains, 

 N. H. 



H. piliferum Schreb. Sp. Fl. Lips. p. 91. 



Hab. On the banks of the Wissahickon, Philadelphia. 



H. fluviatile Svvartz. Mus. Suec. p. 63. H. Vail is Clausa, Bridel Sp. Muse. 

 2. p. 238. 



Hob. Attached to rocks floating in brooks, Franklin County, Perm. Prof. 

 Porter. 



H. palustre Linn. Sp. pi. p. 1593. H. lurid urn, Sw. Mus. Suec. p. 58. Hedw. 

 Musc.Fr. 4. p. 99. t. 38. 



Hab. In rivulets, White Mountains. 



H. ochraceum Turner. 



Hab. Wet situations, Pennsylvania, and White Mountains, N. H. 



H. montanum ( Wils. Mss.) n. sp. Ab H. Halleri differt ramis elongatis erectis 

 foliis falcato-secundisj minus aeuminatis, areolatione densiore et opaciore. 

 Hab. On wet rocks in rivulets, White Mountains. 



H. dimorphum Brid. Sp. Mnsc. 2. p. 149. 



Hab. On dry rocks in shaded wood, Ellis river, near " Glen House," White 

 Mountains. 



H. REFLEXim Starckein Web. & Mohr. Bot. Taschb. p. 306 and 476. Brid. 2. 

 p. 461. Schwaeg. Sup. 2. 1. p. 161 and 143. H. teuax, Drumra. Mus. Am. No. 

 225. 



Hab. In woods on the ground, Massachusetts. 



H. subtenue n. s., dioicum; cespites latissime prostrati, dense intermixti 

 firmi, lurido-virentissimi ; caulis Ionge repens, tenuissimus filiformis rigidus 

 radicans vage ramosus et pinnatus ; ramis breviusculis flexuosis simplicibus et 

 pinnatis longioribus iterum subpinnate ramulosis attenuatis ; folia caulina laxe 

 imbricata, ovato-deltoidea brevi-acuminata acumine subobliquo caviuscula sei- 

 rulata, nervo crasso viridi ante apicem evanescente, cellulis laxiuscnlis peHueidis 

 viridis : ramea ovata sublonge acuminata; perichaetialia oblonge vaginantia 

 erecta et squarrosa Ionge attenuata vel abrupte acuminata, apice summo sub- 

 denticulata, nervosa ; seta flexuosa tuberculata rufa ; theca ovato-globosa cermia 

 et horizontalis subnigra, operculo conico breviter acuminato. 



Hab. On rocks and trees near the base, Gorham, White Mountains, N. H. 



H. abietinum Linn. Sp. PI. p. 1594. Hedw. Muse. Fr. 4. p. 84. t. 32> 

 Hab. Catskill Mountains, N. Y., and White Mountains, N. H. 



H. squarrosum Linn. Sp. PI. p. 1693. 

 Hah. Woods, White Mountains, N. H. 



Mr. Vaux, on behalf of a Committee appointed In 1852, to collect 

 funds for enlarging and improving the Hall, read the following Report : 



The Committee, as constituted by the Academy, September 2S, 1852, to solicit 

 subscriptions for the purpose of enlarging and altering the Hall, beg leave to 

 present the following Report : 



The amount originally esiimated as requisite for the contemplated improve- 

 ments was $6,500, which the Committee were soon enabled to announce to the 

 Society had been obtained. But before a contract had been closed for the 

 work, a great advance took place in the price of labor and materials. Other im- 

 portant alterations and additions also were proposed. A new estimate was then 



