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CONTENTS 



Barniiart, J. H. Nomenclatural Notes — II, 376. 

 BiCKNELL, E. P. Studies in Sisyrinchium. — I : Sixteen new 



Species from the Southern States, 217. 



Studies In Sisyrinchium. — II : Four new Species from Mich- 

 igan, 297. 



Studies in Sisyrinchium. — III : S. angustifolium and some 



related Species, new and old, 335. 

 Studies in Sisyrinchium. — IV : S. angustifolium and related 



Species of the West and Northwest, 445. ' 



Studies in Sisyrinchium. — V : Two new Eastern Species, 496. 

 Studies in Sisyrinchium! — \^I : Additional new Species from 



the Southern States, 628. " ' 



Brixton, E. G. A new Tertiary fossil Moss, 79, 



Clark, J. F. A new Volutella (Plate 371), 617. 



Clifford, J. B. The Mycorhiza of Tipularia unifolia (Plate 372), 



635. 



r 



Davenport, G. E. Acrostichum lomarioides Jcnman, 318. 

 DuGGAR, B. M. On the Development of the Pollen Grain and 



the Embryo-sac in Bignonia venusta (Plates 352-354), 89. 



Earle, F. S. Some Fungi from South America, 632. 



Gilbert, B. D. Two new Polypodia from New Zealand, 316. 



Griffiths, D. Some Northwestern Erysiphaceae, 138. 



. The common Parasite of the Powdery Mildews (Plate 358), 



184. 



Contributions to a better Knowledge of the Pyrenomycetes. 



I (Plates 365, 366), 432. 

 Anthurus borealis Burt. (Figure), 628. 



Grout, 



J 



373- 



A little-known Mildew of the Apple (Plate 364), 



A 



531- 



t 



(iii) 



