Trentepohlia.} ALG.E RHODOSPEIIME.E. 219 



floridulum, in order to show how very slight are its distinguishing- 

 characters. 



4. T. sparsa, Harv. Scattered Trentepohlia. Filaments 

 minutely tutted, scattered, sparingly branched; branches 

 spreading, unequal ; articulations twice or thrice as long as 

 broad; '"capsules obovate, sessile, mostly axillary." (Carm.) 

 Callitlt. spars urn, Harv. in Hook. Br. Fl. v. ii. p. MQ.—C.flo- 

 ridulum, Lyngb. ? 



On various marine Algae. On Conf. rupestris, at Miltown Malbay ; 

 W. H. Harvey. Scarcely a line high. Distinguished from '/'. pur- 

 purea by Us scattered habit and different habitat. 



5. T. Daviesii, Harv. Davies Trentepohlia. Rose-red, 

 minutely tufted, much branched ; branches flexuose, scattered, 

 distant, erecto-patent, with a few erect ramuli; apices acumi- 

 nate ; articulations 3 — 5 times longer than broad. Ca/lith. 

 Daviesii, Ag. — Harv. in Hook. Br. Fl. v. ii. p. 348. Conf. 

 Daviesii, E. Bot. t. 2329. 



On Ceramium rubrum, at Bantry ; Miss Hutchins and Mr. Ii. 

 Ball. 2 — 4 lines high, elegantly tufted. 



6. T. secundata, Harv. Secund Trentepohlia. Rose-red, 

 very minute, tufted, flexuose, sparingly branched; branches set 

 with short, secund, close-spreading, obtuse ramuli ; articulations 

 four times longer than broad. Callith. secimdatum, Ag. — Harv. 

 in Hook. Br. Fl. v. ii. p. 349. C. Daviesii, ft. secundata. 

 Lyngb. Hydroph. Dan. £. 41. 



On Porphyra laciniata, Alaria escidenta, &c. A line or less in 

 height, forming minute tufts or spreading in continuous velvety patches. 

 Capsules tufted, terminal, on abbreviated ramuli. 



7. T. lanuginosa, Harv. Down-like Trentepohlia. Nearly 

 simple, exceedingly minute, brownish; ramuli short, obtuse, 

 secund; articulations thrice as long as broad, pellucid in the 

 centre. Callith. lanuginosum, Lyngb. — Harv. in Hook. Br. Fl. 

 v. ii. p. 349. Conf. lanug. Dillw. t. 45. 



On decaying filamentous Algae, especially Cer. rubrum, very com- 

 mon. The most minute of the genus. 



* * Growing in fresh water. 



8. T. pulchella, Ag. Beautiful Trentepohlia. Filaments 

 minute, virgate, tufted, much branched ; branches erect, alter- 

 nate, beset with short, opposite or secund ramuli ; articulations 

 four times as long as broad ; capsules racemose. Harv. in 

 Hook. Br. Fl. v. ii. p. 382. — Conf. nana, Dillw. t. 30. (not cha- 

 racteristic.) E. Bot. t. 2585. — p. chalybea, Ag. — Conf. chaly- 

 bea, Dillw. t. 91. E. Bot. t. 1666. /. J. 



In mountain streams ; growing on the naked rock, or on aquatic 

 mosse*. About Killaruey, Glengaritf, See. £ — ^ inch long-, much 



