Ser. RHODOSPERMEA. Fam. Corallinee. 
Prats CCXXII. 
CORALLINA OFFICINALIS, Zina. 
Gen. Cuar. Frond filiform, articulated, branched (mostly pinnate), coated 
with a calcareous deposit. Hructification ; turbinate or obovate, 
mostly terminal ceramidia, pierced at the apex by a minute pore, and 
containing a tuft of erect, pyriform, or club-shaped, transversely 
parted tetraspores. CoraLtina (Linn.),— from Coralium, coral, 
which these plants resemble in being of a stony nature. 
CoRALLINA officinalis ; decompound-pinnate ; lower articulations cylindrical, 
twice as long as broad; upper slightly obconical, round-edged, their 
upper angles blunt; ultimate ramuli cylindrical, obtuse. 
CoRALLINA officinalis, Syst. Hd. x. p.805. Pal. Elench. p. 422. Lillis in 
Phil. Trans. vol. 57. p. 419. t.17. f. 12,18. Linn. Corresp. vol.i. p. 201. 
Soland. Zoop. p. 118. t. 23. f. 14,15. Esper. Corall. t. 3. Berk. Syn. vol. i. 
p- 211. Jameson in Wern, Mem. vol.i. p. 563. Turt. Gmel. vol. iv. p. 671. 
Turt. Br. Faun. p. 211, Stem. Elem. vol. ii. p. 439. Cuv. Reg. An.vol. iii. 
p- 305. Lamour. Cor. Flex. p. 283. Lamour. Corall. p.127. Lamk. An. 
S. vert. vol. ii. p. 328. 2nd edit. vol. ii. p. 513. Flem. Brit. An. p. 514. 
Gray, Brit. Pl. vol. i. p. 339. Blainv. Actinol. p. 547. t. 96. f.3, 3 a. 
Johnst. Br. Sponges and Lith. p. 216. Decaisne, Ess. p.107. Kiitz. Phyc. 
Gen. p. 388. t.79.f.1. Endl. 3rd Suppl. p.48. Mont. Fl. Alger. p. 128. 
CoRALLINA anglica, Ger. Herb. 1572. Merrett, Pin. 30. Rati, Hist. vol. i. 
p. 65. Syn. 33. no. 1. 
Has. On rocks between tide-marks, extending throughout the whole of 
the htoral zone, generally growing in rock-pools. Perennial. Winter 
and spring. Abundant on all the rocky shores of the British Islands. 
Groer. Distr. Throughout the northern Atlantic Ocean and in the Mediterra- 
nean Sea. (Hxtra-Huropean habitats require investigation.) 
Descr. Root, a widely spreading, calcareous crust. Fronds from one to six 
inches high, twice as thick as hog’s bristle, congregated in dense tufts, or 
spreading in continuous patches over a wide surface of rock, varying much 
in ramification and general aspect, according to the depth at which vegeta- 
tion takes place. Well-grown specimens are 4—6 inches high, more or less 
regularly pinnate, or bi-tripimnate ; the pinne sometimes rising, in opposite 
pairs, from every joint; in others several joints intervene between each 
pair of pinnee, or one pinna is wholly suppressed. Various irregularities in 
branching take place from suppression, and some specimens are thus reduced 
to long naked, alternate or spuriously dichotomous branches; while others 
‘are regularly feathered throughout. Ramuli slender, cylindrical, obtuse, 
composed of joints three or four times as long as broad. Articulations 
in the lower part of the stem cylindrical, about twice as long as broad, or 
somewhat shorter: those of the upper branches more or less pear-shaped or 
obconical, gradually swelling from the base upwards, slightly compressed, 
but rounded at the edges, and having the upper angles very obtuse, and not 
prominent. When the calcareous matter is removed by acid, the surface 
