ACOTYLEDONS. ALG/E. CllOltdiia. 1()5 



3 4 or G inches long, generally dark purple,, but often bleached by 

 exposure on the beach. 



29. CHONDRIA. 



Frond between gelatinous and cartilaginous. Fruit double. Seeds 

 naked, immersed in the branches, and capsules containing 

 pyriform seeds. Frond filiform, generally equal throughout, 

 branched. Colour reddish, soon becoming pale. 



1. Ch. oltusa, frond subcartilaginous cylindrical filiform repeat- 

 edly pinnated, branches generally opposite, ramuli cylindrical 

 short between horizontal and patent truncated, capsules ovate 

 sessile and naked seeds on the ramuli. Turn. Ag.p.35. Fucus 

 cbtusus, Turn. Hist. Fuc. t. 21. E. B. t. 120l. 



HAB. Rare, Firth of Forth, Mr. Stewart and Mr. Grevllle. 

 3 6 inches tall. Colour, a pinky yellow, very fugitive. 



2. Ch. pinnatifida, frond compressed subcartilaginous branched, 

 branches mostly alternate doubly pinnatifid, ramuli obtuse 

 callous, capsules ovate sessile and naked seeds on the ramuli. 

 Turn. Fucus pinnatifidus, Lightf. p. 953. Turn. Hist. Fuc. 

 t. 20. E.B. t. 1202. 



j3. Osmunda, frond flat generally undivided, ramuli short and 



multifid, Turn. F. fiLicinus, 'LJghtf. p. 954. 

 HAB. Rocky shores, common. /3. with a. 

 Three to seven or nine inches high, livid purple, pale. 



3. Ch. ovalis, frond subgelatinous nearly cylindrical filiform 

 irregularly dichotomous naked below in its upper part clothed 

 with elliptical simple ramuli imbricated on all sides bearing 

 naked scattered seeds and hemispherical sessile tubercles. 

 Turn. Fucus ovalis, Turn. Hist. Fitc.t. 81. E. B. t. 711. 

 Fucus verm'mdaris, Lightf. p. 95 S. 



HAB. Basins of "water upon marine rocks, but not common. Little 

 Isles of Jura, Lightf. 



Three to seven inches long, reddish purple. The ramuli are admi- 

 rably compared by Lightfoot to the leaves of Sedum album. 



4. Ch. dasyphylla, frond filiform cylindrical branched in an irre- 

 gularly pinnated manner, branches between horizontal andpa- 

 tent mostly simple, ramuli cylindrical scattered attenuated at 

 the base proliferous, capsules ovate sessile, and naked seeds 

 on the ramuli. Turn. Fucus dasyphyllus, Turn. Hist. Fuc. 

 t.22. E.B.t.847. 



HAB. Losie-mouth, James Brodie, of Brodie, Esq. 

 Three to six inches long. Colour pale, pinky brown. 



5. Ch. clavellosa, frond subgelatinous filiform cylindrical tubular 

 much and irregularly branched, branches and ramuli mostly 

 alternate and distichous, tubercles sessile and scattered seeds 

 on the ramuli. Turn. Fucus clavellosus, Turn. Hist. Fuc. 

 /.30 (bis). E.B.I. 1203. 



