Fig . 13. 
FAMILY III. SERTULARIADiE. 
5. Thoa, # Lamouroux. 
Character. — Polypidoms rooted , arbuscular : the stem com- 
posed of aggregated subparallel capillary tubes ; the branches al- 
ternate , spreading bifariously : cells tubular , indistinct , alter- 
nate : ovarian-vesicles irregularly scattered . — Polypes hydraform , 
scarcely retractile within their cells . 
1. T. halecina, vesicles oval , the aperture shortly tubulous 
subterminal. Mr. Newton.-f* 
Plate VI. 
* From Qcof, sharp ; or more probably a mispelling of Thoe — one of the 
Nereids. 
•f Mr James Newton, a good practical botanist, contemporary with Ray, to 
whom he sent many contributions for the Synop. Stirp. Brit., and the Hist. 
Plantarum. He died before the publication of the 3d edition of the Synopsis 
in 1724, but Dillenius acknowledges his obligations, and introduced several 
species into our Flora, for the first time, on Newton’s authority. I am not aware 
