SIPHONACEtE. 
21 
reduced to mamillseform tubercles, the upper more perfectly formed, ellipsoidal, saclike, 
and mucronulate. The branch, including its ramenta, is not more than a line in 
diameter. The substance is rather rigid, and is horny when dry. The colour is dull 
green, inclining to olivaceous. 
I have much doubt whether this plant, which was originally described and figured by 
Turner, be permanently distinct from the following, of which it has very much the habit, 
but from which it differs, at least in typical specimens, by the more numerous rows of 
the ramenta and their more ellipsoidal shape. Specimens however vary in both these 
respects, and I could be well content to unite both forms under one specific name. 
Plate XXXIX. A. Fig. 1 . Caulerpa ericifolia , the natural size. Fig. 2, small 
fragment of a branch with its ramenta. Fig. 3, a ramentum ; the latter figures 
magnified. 
8. Caulerpa cwpressoides , Ag. ; surculi robust, naked and glabrous ; frond shortly 
stipitate, irregularly much branched ; branches scattered, once or twice compounded, 
set with short, conoidal, mucronate, sub-bifarious or bifarious ramenta. Ag. Sp. Alg. 1, 
p. 441. Chauvinia cupressoides , Kutz. Sp. Alg. p. 497. Trevis. 1. c. p. 137. Fucus 
cupressoides , Esper. t. 161. Turn. Hist. t. 195. (Tab. XXXIX. B.) 
Hab. Key West, with the preceding. Prof. Tuomey. (v. v.) 
Except in the less imbricated, di-tristichous, and shorter ramenta, this species does not 
differ from C. ericifolia. But these characters are variable. If the two species be united, 
the name cupressoides , as the older, must be preserved. Both forms are natives of 
the West Indies, and of the Pacific Ocean. C. ericifolia was first brought from 
Bermuda ; and C. cupressoides from St. Croix. 
Plate XXXIX. B., Fig. 1. Caulerpa cupressoides , the natural size. Fig. 2, apex 
of a branch with tristichous ramenta. Fig. 3, portion of another branch with disti- 
chous ramenta. Fig. 4, a ramentum ; the latter figures magnified. 
9. Caulerpa paspaloides , Bory. ; surculi robust, naked and glabrous ; fronds with a 
long naked stipes, flabellately branched, the branches once or twice forked, or simple, 
fastigiate, densely beset in 3 or 4 ranks, with plumose, patent or recurved ramenta ; 
ramenta sub-bipinnate, pinnas opposite turned to one side, subulate or mucronulate, 
mostly pectinated with similar mucronulate pinnules on their inferior sides. Chauvinia 
paspaloides , Bory , Coq. p. 205, tab. 23, fig. 1. Kutz. Sp. Alg. p. 500. Trevis. 
in Lin. 22, p. 137 • Caulerpa Wurdemanni , Harv. MS. — Var. A] ramenta simply 
pinnate, the pinnee very long and straight, destitute of pinnules. 
PIab. Key West, abundantly. Dr. Wurdemann, W. H. H., Prof. Tuomey , Mr. 
