98 Howe: Nores oN BAHAMAN ALGAE 
Neomeris Cokeri constitutes the third known species of the 
genus, all of which occur in the West Indian region. The princi- 
pal diagnostic characters of the three species may be arranged as 
follows : | 
Hairs homogeneous ; ends of the branches of the second order forming a cortex with 
isti cets 
t 
Plant isan a Vw) of 3.5 cm.; sporangia spherical or nearly so, strongly | 
calcified but fre 1. WV. dumetosa.* 
Pais sell a height of 2 cm. ; sporangia obovoid-oblong or pyriform-obovoid. 
about twice as long as broad (not including stalk), strongly coherent laterally 
ie their calcareous capsules, so that the plant in the lower fertile i appears 
eae annulate. . MV. annulata.t 
Hairs pianos s, the two forms in different zones ; branches of the ae povies sub- 
fusiform, tet forming a cortex, surface of the plant after the fall of the hairs 
somewhat shaggy or minutely and irregularly punctate ; sporangia free or coherent in 
short rows of 2-8. 3. MV. Cokert. 
Neomeris annulata is not especially uncommon in the West 
Indian region. The writer has collected specimens in Bermuda, 
Key West, Florida (two stations) and Porto Rico (three stations). 
Of what appears to be the true V. dumetosa, we have seen only 
* NEOMERIS DUMETOSA art age Polyp. 243. g/. 7. f. 8. 1816. Sonder, 
Alg. Trop. Austral. 7. 5. f. 8-13. 1871. J. Ag. TillJAlg. Syst. 5 : 147-151. pl. 2. f- 
< 1887. Cramer, Neue acne Rea Naturf. Ges. 30 : — (10, 38) Pi 2. f. 
y pl. 1887. Cramer, of. cit. 32:19. pl. 7. f. 13.3 pl. 2.f. 7,8. 1890- 
De Toni, Syl Me 1: 413. 1889. Solms, Ann. Jard. Bot. Buitenzorg, 51: 70. f/- 
8b. f. rr. 1893. 
{ NEOMERIS ANNULATA Dickie, Jour. Linn. Soc. 14: 198. 1874. De-Toni, 
Syll. Alg. 1: 414. 1889. Solms, Ann. Jard. Bot. Buitenzorg, 11: 61-71. p18. fi 4 
I> 4s — ahs 43,17. 1593. 
s Kelleri Cramer, Neue Denkschr. Schweiz. Naturf. Ges. 30 :—(3)- 7’ 
Bs Fs = a. 7-12 ; pl. 3. f. 1,2. 1887. Cramer, of. cit. 32: 9. pl. 2. f. 1-123 pl. 2.f- 
1-6; pl. 4. f. 15-24. 1890. De-Toni, Syll. Alg. 1: 413. 1889. 
Neomeris Eruca Farlow; Cramer, Neue Denkschr. Schweiz. Naturf. Ges. 32* 
9, 18, 19. 1890. 
The names Dactylopora Benge D. eo and J. sacspece of Parker and Jones 
(Ann. and Mag. Nat. Hist. III. 473, 474. 1860), quoted by Cramer in the 
synonymy of his ea Kelleri, were originally applied ae to calcified spore- 
masses and fragments of a Meomeris from the ‘‘ East Indian and other tropical seas,” 
and cannot, in our opinion — especially since the discovery of Neomeris Cokeri with 
its peculiar hairs —be safely identified with any definite — though as between 
Neomeris dumetosa and N. annulata, retisi ora Eruca and D, Annulus clearly 
belong with the latter type. ‘the name Neomeris Eru. @ F it apparently was first 
published by Hauck in Engler’s Bot. Jahrb. (9: iy 1888) but this, so far as 
_ technicalities of publication are concerned, rests on the eens at Eruca synony™ 
alone, and is bieacom. we believe, of uncertain application 
