SYNOPSIS OF THE SPECIES. XXV 



174. versicolor j stipitate ; frond fan-shaped, circumscribed, subdichotomous or 

 irregularly cleft, veinless, incrassated at the base; segments rounded. 

 (Tab. IX.) 



LIII. PLOCAMITJM. 



175. coccineumj frond narrow, piano-compressed; rarnuli subulate, secund, 

 3 or 4 consecutively ; pectinate on their inner edges. (Tab. XLIV.) 



Order 11. RHODYMENIACE^. 



LIV. STENOGEAMME. 



176. interniptaj stipitate, membranaceous, flabelliform, dichotomously cleft; 

 apices obtuse ; conceptacles forming a nerve-like line through the centre of 

 each lobe. (Tab. CLVII.) 



LV. RHODYMENIA. 



177. bifida; thin and semitransparent, dichotomous ; segments linear or cu- 

 neate ; apices obtuse ; tubercles mostly marginal, sessile ; tetraspores trans- 

 versely zoned. (Tab. XXXI 1.) 



178. laciniata; frond thickish, subopake, bright red, flabelliform, deeply cleft ; 

 segments wedge-shaped, obtuse ; margin curled and fringed with minute 

 processes in which the tubercles are imbedded. (Tab. CXX1.) 



179. Palmettaj stipes cylindrical, elongate, expanding into a fan-shaped, rose- 

 red, dichotomously cleft frond; segments linear, with rounded intersti 

 margin entire, flat ; tubercles sessile, marginal or scattered ; sori elliptical, 

 solitary in the expanded apices. (Tab. CXWIV.) 



180. cristataj fan-shaped, membranaceous, deeply laciniate ; segments dilated 

 upwards, repeatedly divided; lesser divisions laciniate al the ends and 

 often fimbriate; tubercles spherical, marginal, sessile. (Tab. CCCV11.) 



181. ciliataj frond thick, subopake, dull purplish-red, shortly stipitate, lanceo- 

 late or forked, irregularly pinnated with lanceolate or bifid segments; 

 margin fringed with subulate processes, in which tubercles are imbedded. 

 (Tab. CXXVH) 



182. jubata; frond thickish, flaccid, dull red, linear-lanceolate, eirrhose at the 

 apex, pinnatifidj margin and often the disc besel with filiform processes. 

 (Tab. CLXXV.) 



I 33, palmata; frond coriaceous or membranaceous, dull purple, broadly n 



shaped, irregularly cleft, palmate or dichotomous, sometimes laciniate, and 

 very narrow; margin Hal and even, simple or tvinged with leaflets 

 cloud-like, dispersed. (Tab. CCXVIL and CCXVII1.) 



LVI. SPH^EROCOCCUS. 

 Is I. coronopifolius ; much branched; branches alternate or BubdichotomOltS, 



multifid; lacinise acute, fringed with cilia; tubercles in the marginal cilia 

 (Tab. LXI.) 



l.\ II. GRACILARIA. 



multipartita j frond flat, tender, purplish-red, deeply cleft, irregularly 



dichotomous or fingered; branches linear-wedge-shaped j tubercles conical, 



\n_\ prominent, scattered plentifully over the segments. (Tab. XV.) 



186. compressa ; frond succulent, brittle, suboompressed, irregularh branched; 



branches long, tapering ; tubercles prominent, ovate, scattered, i r \i;. CCV.) 



