196 Miscellanies. 



De Cand. and J. E. Smith ; it grows in moist and shady woods, and 

 on banks of rivers ; pretty common in Scotland, less frequent in Eng- 

 land ; root is creeping ; plant grows a yard high or more, smooth ; 

 leaves grassy and flat, rough, cutting on the edges and keel. Pani- 

 cle consists of innumerable little dark green, ovate spikes ; glumes 

 obtuse with moi*e or less of a small point : stigma 3-fid ; seed len- 

 ticular, whitish, smooth with six or eight rough bristles. We have 

 many Scirpi which are unknown in Europe. Sir J. E. Smith only 

 names three which are unknown here, viz. S. setaceus, holoschemus 

 and sylvaticus. 



Mr. T. also exhibited a specimen of the Andromeda mariana from 

 the same locality ; also the rarest of our American plants, Lygodium 

 palmatum. A curious variety of Linaria vulgaris (the Peloria of 

 Lin.) was exhibited ; the corolla appears in the form of a cone, ter- 

 minated above by a prominent border of five divisions, and below 

 producing five spurs instead of one ; so that according to Nuttall we 

 have the ringent flower restored to its natural symmetry and regularity, 

 this being the original condition of the flower, an opinion, however, 

 which is not substantiated. 



Dr. A. A. Gould read descriptions of the following species of shells. 



SoLEcuRTUs NiTiDus. Testa oblongo-ovata; utrinque rotundata, 

 inequilaterali ; epidermide inflecta, luteo-virescente, glabra, postice 

 corrugata ; intus costa transversali. Long. 3 poll. K\t. \^^. Lat- /^. 



Mactra ovalis. Testa magna, crassa, obovatS,, subtriangulari, 

 subequilaterali ; epidermide rudi, fusco-viridi, transverse corrugata 

 induta ; natibus, areola lanceolata. Long. 4 poll. Alt. 2y''o. Lat. Ij»^. 



Bulla debilis. Testa parva, convoluta, ovata, ventricosa, hyalina, 

 basi truncata, sub-umbilicata ; spira retusa, discoidea ; anfractibus 

 quatuor, supra rotundatis. Long. y\. Lat. y^. 



Bulla obstricta. Testa parva, pallida, convoluta, ovoide^, me- 

 dio obstricta; anfractibus quinque, spira elevata, obtusa ; sutura du- 

 plicata; aperturalongitudinali, infernedilatat^. Long. Jg- poll. Lat./^-. 



Lymnea chalybea. Testa ovata, anfractibus quatuor ; spira acuta; 

 sutura profunda ; apertura magn&,, dilatata ; intus chalybea, extra ni- 

 gricante. Long. yV poll. Lat. /^ polh 



Valvata pupoidea. Testa parva, castane^, elevata : anfractibus 

 quatuor ad quinque, ultima a precedente disjuncta. Long. yV poH* 



Lat. 4=V po^^' 



Planorbis hirsutus. Testa dextrorsa, discoidea, utrimque con- 

 cava ; anfractibus quatuor, lineis hirsutis, volventibus insignibus. Lat. 

 2*0 PO^l- I^ong. -i^. 



Natica flava. Testa ventricoso-globos^,, imperforate, alb^, epi- 

 dermide flava ; anfractibus quatuor ; columella flexuQs^ ; aperture 

 aftipie. Long. 1 poll. Lat. y^^ \}oW. 



