THE GREEN ALGAE OF NORTH AMERICA 461 



128. Boodlea compacta, after Brand. 40 X i. 



129. Cladophoropsis membranaceus, after Borgesen. 20 X i. 



130. Halicystis ovalis, after Saunders. 2X1. 



PLATE XV. 



131. Acetabularia crenulata, group of individuals, after Har- 



vey. 2X1. 



132. Microdictyon Agardhianum, after Montague. 20 X i. 



133. Hormiscia penicilliformis, filament, after Areschoug, 



200 ; ' i. Zoospore, after Areschoug. 1000 X i. 



134. Struvea anastomosans, after Harvey. 3 ) ' i. 



135. Gomotia polyrhiza, with sporangium, after Bornet and 



Flahault. 300 X i. 



136. Chamaedoris annulata, after Harvey, i X i. 



137. Dictyosphaeria favulosa, group of individuals, after Har- 



vey. 10 X i. 



138. Valonia utricularis, after Schmitz. 10X1. 



PLATE XVI. 



139. Siphonocladus rigidus, after Howe. 20 X i. 



,140. Chalmasia antillarum, stipe and disk, 5X1; details of 

 base of disk, 20 and 40 X i, after Solms. 



141. Sphaeroplea annulina, with oospores, after Hansgirg. 



200 X i. 



142. Dasycladus claveformis, after Hauck. i X i. 



143. Neomeris annulata, group of individuals, after Cramer. 



i X i. 



144. Codium tomentosum, iitricle and sporangium, after 



Thuret. 75 ; i. 



145. Batophora Oerstedi, group of individuals, after Harvey. 



i X i. 



146. Cymopolia barbata, after Harvey, i i. 



147. Avrainvillea levis, after Howe, i X i. 



148. Acicularia Schenckii, disk from above, 5X1; contents 



of sporangium, 10 X i, after Borgesen. 



PLATE XVII. 



149. Penicillus capitatus, after Harvey, i i. 



150. Rhipocephalus Phoenix, after Harvey. 2X1. 



