CONTENTS 



Curtis, Carlton Clarence. A biographical sketch of Lucien Marcus 



Underwood (portrait) ---------j 



Howe, Marsall Avery. Lucien Marcus Underwood: a memorial 



tribute --------------j* 



Barnhart, John Hendley. The published work of Lucien Marcus 



Underwood -------- ^ - . t7 



Britton, Nathaniel Lord. Professor Underwood's relation to the 



work of the New York Botanical Garden - - - - - 39 



Bicknell, Eugene P. The ferns and flowering plants of Nantucket— I. 49 



Robinson, Charles Budd. Alabastra philippinensia— I - 63 



Standley, Paul Carpenter. Some Echinocerei of New Mexico - - 77 



House, Homer Doliver. Two Bahamian species of Evolvulus - - 89 

 House, Homer Doliver. Studies in the North American Convolvu- 



laceae — IV. The genus Exogonium (with plates 1 and 2) - - 97 

 Cushman, Joseph Augustine. The New England species of Closte- 



rium (with plates 3-5) ---------109 



Dowell, Philip. New ferns described as hybrids in the genus 



Dryopteris ------------ 135 



Wester, P. J. Correlation of flower- and fruit-structure in Carica 



Papaya -----. I4I 



Jackson, H. S. Sorosporium Ellisii Winter, a composite species - - 147 

 Evans, Alexander William. Hepaticae of Puerto Rico— IX. Brach- 

 iolejeunea, Ptychocoleus, Archilejeunea, Leucolejeunea, and Ano- 

 plolepeunea (with plates 6-8) --------155 



Bicknell, Eugene P. The ferns and flowering plants of Nantucket - 181 



Britton, Nathaniel Lord. The genus Ernodea: a study of species 



and races ------------ 203 



Cook, Melville Thurston. The development of the embryo-sac and 



embryo of Potamogeton lucens (with plates 9 and 10) - - - 209 

 Brown, Harry B. Algal periodicity in certain ponds and streams - - 223 

 Berry, Edward W. Some Araucarian remains from the Atlantic 



coastal plain (with plates 11-16) ------- 249 



Mackenzie, Kenneth Kent. Notes on Carex— IV - - - - 261 



Harshberger, John W. The water-storing tubers of plants (with 

 plate 17)------ 



Seaton, Sara. The development of the embryo-sac of Nymphaea 

 ad vena (with plates 18 and 19) - 



Setchell, William Albert. Notes on Lycoperdon sculptum Harkness 



(with plate 20) ----------- 291 



Zahlbruckner, A. New North American lichens - - - - - 297 



Nash, George V. Two new grasses from the West Indies - - - 301 

 Britton, N. L. The generic name Bucida ------ 303 



Cook, Melville Thurston. The hypertrophied fruit of Bucida Buceras 305 



• • • 



111 



271 



283 



