BOTANICAL GAZETTE. 



21 



asplenoides, (L.), Nees and Mont. 

 interrupta, Nees. 

 Ludoviciana, Sulliv. 

 porelloides, Lindb. 

 spinulosa, (Dicks.), Nees and Mont, 

 undata, Sulliv. 

 Pleuranthe, Tayl. 



olivacea, Tayl. 

 Pressia, Nees. 



commutata, (Lindb.), Nees. 

 Radula, Nees. 

 Caloosiensis, Aust. 

 cotnplanata, (L.), Dumort. 

 Hallii, Aust. 

 obconica, Sulliv. 

 pallens, (Swz.), Nees. 

 spicata, Aust. 

 Sullivanti, Aust. 

 Xalapensis, Mont. 

 Kiccia, Mich, 

 albida, Sulliv. 

 arvensis, Aust. 



var. birta, Aust. 

 Beyricbiana, Hampe. 

 bifurca, Hoti'm. 

 Californica, Aust. 

 crystal! ina, L. 

 Donnellii, Aust. 

 fiuitans, L. 



var. terrestris. 



var. lata. 



var. canaliculars. Hofftn. 

 Frost ii, Aust. 

 glauca, L. 

 lamellosa, Raddi. 

 Lescuriana, Aust. 

 lutescens, Schwein. 

 natans, L. 



var. terrestris, Aust. 

 nigrella, DeCand. 

 sorocarpa, Biscb. 

 Sullivanti, Aust. 



tenuis, Aust. 



tuniida, Lindb. 



Watsoni, Aust. 

 Sarcoscyphus, Corda. 



adustus, Nees. 



Bolanderi, Aust. 



ernarginatus, (Ehrh.). 

 var. aquaticus, G. L. N. 



sphacelatus, (Gies.), Nees. 

 Sauteria, 



limbata, Aust. 

 Scapania, Lindb. 



albicans, (L.), Mitt. var. taxifoiia. 



Bolanderi, Aust. 



breviflora, Tayl. 



compacta, (Roth.), var. irrigua. 



exsecta, (Schmidt). 



nemorosa, (L.).Nees. 



Oakesii, Aust. 



Peckii, Aust. 



subalpina, (Nees.). 



uliginosa. 



umbrosa, (Schrad.) Nees. 



undulata, (L.) Nees and Mont. 

 Sexdtnera, Endl. 



juniperina, Nees. 

 Sph^erocarpus, Mich. 



Berteri, Mont. 



Californicus, Aust. 



Donnellii, Aust. 



Michelii, Bellardi. 



Texanus, Aust. 

 Sphagncecetis, Nees. 



Macouni, Aust. 

 Steetzia, Lehm. 



Lyelli, (Hook.) Lehm. 

 Targonia, 



Michelii, Corda. 

 Thallocarptjs, Lindb. 



Curtissi, Aust. 

 Trichocolea, Nees. 

 Tomentella, Nees. 



Genera, 49; species, 219; varieties, 17 



The Mistletoe.— The Mistletoe of the Eastern States has a 

 general resemblance to that of Europe, Viscum album ; but the old 

 genus Viscum has been divided by modern botanists, although the 

 lines of distinction are somewhat artificial. We have two genera, 

 Phorndendron and Arceuthobium. Among the leading distinctions may 

 be mentioned that the European branch of the family, Viscum, as 

 now restricted, has the anther open by three pores or slits, our Pho- 

 radendron by two, while the Arceuthobium has but one. There are 

 other slight differences in pollen grains, cotyledons, and form of the 

 fruits. The European Mistletoe is usally found on deciduous trees 

 only, an instance being recorded where it has been found on the 

 Scotch pine in Germany, and its American representative. Phoradcndron 



