348 Phillips . — On ihe Development of 
cohort Rhodymeniales, more particularly the closely allied 
Ceramiaceae. I desire now to record the results of obser- 
vations on the structure of the cystocarp in the following 
species : — 
Bonnemaisoniaceae : Bonnemaisonia asparagoides , C. A g. 
Rhodymeniaceae : Plocamium coccineum , Lyngb. 
Sphaerococcaceae : Calleblepharis ciliata , Kiitz. 
Ceramiaceae : Antithamnion Plumula , Thur. 
Griffithsia corallina , C. Ag. 
Griffithsia setacea , C. Ag. 
Callithamnion byssoides , Arn. 
Callithamnion granulatwn, C. Ag. 
Ceramium tenuissimum , J. Ag. 
Ptilota plnmos a, C. Ag. 
Plumaria elegans , Bonnem. 
Bonnemaisonia asparagoides, C. Ag. 
The family Bonnemaisoniaceae is represented in British 
waters by a single species, Bonnemaisonia asparagoides , C. Ag. 
By J. G. Agardh the genus was made the type of the Bon- 
nemaisonieae, one of the four tribes of the order Chondrieae. 
The Chondrieae of Agardh (’63) no longer exists in the 
system founded by Schmitz on the structure and develop- 
ment of the cystocarp. The single genus constituting each 
of three Agardhian tribes have been removed to widely 
separate families : Polyides has gone to the Rhizophyllidaceae, 
Solieria to the Rhodophyllidaceae, Lomentaria to the Rho- 
dymeniaceae. The tribe Bonnemaisonieae may be said to 
have survived in Schmitz’s Bonnemaisoniaceae, shorn how- 
ever of the large genus Latirencia^ which has gone to the 
Rhodomelaceae. I cannot find that the minute structure 
of the cystocarp in Bonnemaisonia asparagoides has previously 
been described and figured. The description of the family 
in the Pflanzenfamilien , as far as it applies to this genus, 
certainly leaves much to be desired. The authors (Schmitz 
and Hauptfleisch. ’96) regard the Bonnemaisoniaceae as inter- 
