156 CRTPTOGAMIA. 



Plocamitjm augustum, HooJc. & Harv. ; Harv. Ner. Austr. p. 122. 

 Laurencia c^espitosa, Lamour. ; Harv. Ner. Austr. p. 82. 



NEW ZEALAND. 

 Splachindium rugosUxM, Orev. ; J. Agardh, 8p. p. 186. 



HORMOSIRA BlLLARDIERI, J. Ag. I. C. p. 199. 



Ctstophora retorta, J. Ag. I. c. p. 243. 

 Cystophora monilifera, J. Ag. I. c. p. 241. 



IVCODIUM GLADIATUS, J. Ag. I. C. p. 202. 



DurvilLjEA utilis, Bory ; J. Ag. 1. c. p. 188. 

 Carpophyllum maschalocarpum, Grev. ; J. Ag. I. c. p. 300. 

 Sargassum plumosum, Rich. ; J. Ag. I. c. p. 188. 

 Sargassum Sinclairii, Hook. & Harv. (Tab. 1.) 



A single, imperfect specimen, gathered in the Bay of Islands, occurs 

 in this collection ; which is in some measure doubtful, as it is without 

 the fruit or base of the stem. It is about a line in diameter below, 

 and tapers upward to less than half that size; and is undivided and 

 obtusely triangulate, or semiterete below. The lateral branches are 

 reflexed at their insertion, alternate, one or two inches asunder, simple 

 or pinnately decompound, bare of leaves in their lower half, but rough 

 with the spine-like petioles of old leaves ; leafy above. Leaves from 

 an inch to one and a half inches long, three to four lines wide, very 

 unequal-sided at the base, and there attenuated and cuneate, obtuse at 

 the apex, oblongo-lanceolate, unequally toothed, or sub-entire. Vesi- 

 cles numerous, especially on the naked part of the branches, elliptical, on 

 short, terete petioles, mucronate, or tipped with a leaf. We refer this 

 specimen, with some hesitation, to S. Sinclairii, Hook. & Harv., a little 

 understood species, of which no very complete specimens have yet 

 reached us. It agrees with those collected by Dr. Sinclair, in many 

 points, but wants the large incised lower leaves; and we regard it as 

 an older condition of the plant from which the lower leaves have dis- 

 appeared. 



