XX11 SYNOPSIS OF THE SPECIES. 



128. parasitica; distichous, rigid, slender, full red, bi-tri-pimiate ; pinnules 

 closely set, alternate, subulate, acute ; articulations about as long as broad, 

 each marked with 3 or 4 broad, hexagonal cells, separated by pellucid 

 spaces ; capsules ovate, stalked. (Tab. CXLVII.) 



129. byssoides; stems rigid, setaceous, distichously pinnate ; branches patent, 

 decompound, clothed with dichotomous single-tubed byssoid ramelli ; arti- 

 culations variable in length ; siphons seven. (Tab. CCLXXXIV.) 



XLI. DASYA. 



130. coccinea; stems robust, rough with hair-like fibres, distichous; branches 

 bi-tri-pinnate ; pinnae multifid, single-tubed, their articulations as long as 

 broad. (Tab. CCLIII.) 



131. ocellata; stems subsimple; ramelli quadrifarious, dichotomous, erecto- 

 patent; stichidia linear-lanceolate, tapering to a point. (Tab. XL.) 



132. Arbuscula ; irregularly much branched ; ramelli quadrifarious, dichotomous, 

 patent or divaricate, scarcely attenuated ; articulations 2-4 times as long as 

 broad ; stichidia elliptic-oblong, mucronate ; capsules urceolate, with a long 

 cylindrical neck. (Tab. CCXXIV.) 



133. venusta j decompoundly pinnate ; ramelli quadrifarious, exceedingly slender, 

 many times dichotomous, much attenuated ; articulations 5-6 times as long- 

 as broad; stichidia pedicellate, ovoid, much acuminate; capsules ovate- 

 urceolate. (Tab. CCXXV.) 



Order 8. LAUHENCIACE^.* 



XLII. BONNEMAISOJSTIA. 



134. asparagoides j frond compressed; capsules stalked, opposite the cilia. 

 (Tab. LI.) 



XLIII. LAURENCIA. 



135. pinnatifidaj frond compressed, bi-tri-pinnate, the divisions alternate; 

 ramuli linear, erecto-patent, simple or lobed. (Tab. LV.) 



136. csespitosa; cylindrical or subcompressed, narrow, repeatedly pinnate, pyra- 

 midal ; branches and ramuli erecto-patent, scattered, distichous or spreading 

 on all sides, truncate, scarcely tapering at the base. (Tab. CCLXXXVI.) 



137. obtusaj cylindrical, repeatedly pinnate; branches patent; pinnae and pin- 

 nulse mostly opposite, the ultimate pinnules very short and obtuse. 

 (Tab. CXLVIII.) 



13$. dasyphylla; cylindrical, decompoundly pinnate or irregularly branched; 

 branches erecto-patent ; ramuli much attenuated at the base, scattered, very 

 obtuse. (Tab. CLII.) 



139. tenuissima; frond terete; branches long and virgate, clothed with very 

 slender, short ramuli, which taper at each end. (Tab. CXCVIII.) 



XLIV. CHEYSYMENIA. 



140. clavellosaj repeatedly pinnate ; ramuli lanceolate, attenuate. (Tab. CXIV.) 



141. rosea; pinnate or bipinnate ; branches elliptic-oblong, compressed; pinnae 

 opposite, blunt. (Tab. CCCI. and Tab. CCCLVIII. A.) 



XLV. CHYLOCLADIA. 



142. ovalisj frond terete, branching, solid; branches clothed with simple, ellip- 

 tical, jointed, tubular ramuli ; capsules spherical. (Tab. CXVIII.) 



