174 Dr. Gooden"OUGH and Mr. Woodward'/ Obfervations on 



mark of diftinction is that appearance of being channelled, which, 

 though but (lightly impreiled, yet is fufficiently vifible, particularly 

 towards the bale of the frond. The branches are patent, the di- 

 chotomies forming fometiines almoft right angles. We have per- 

 ceived in fome fpecimens, when dried, a very flrong, rank fmell. 



39. FuCUS MAMMILLOSUS. 



F. fronde dichotoma ramis fuperne dilatatis, utrinque mammil- 



lofo-tuberculiferis, apicibus acutis. Herb. Buddie, p. 10. n. 7. 



9, 10. Mmjon, H'ifl. Ox. 3. p. 646. / 15. /. 8./ 13. bona. 



F. canaliculatus var. <3. Fl. Ang. p. 583. 



Vary y. Withering* vol. 3. p. 250, 



'F ceranoides var. e. Fl. Scot. p. 917. 



Far, (3 — fronde angufta lineari apicibus acutiufculis* 



F. ceranoides var. £. Fl. Scot. p. 916. 



Habitat in rupibus et faxis fubmarinis frequens — /3 prope Haftings, 



fed parce. 



Radix callus expanfus — From bafi furculofa, unde plurimi caules 



conferti ex eodem callo oriuntur — Haud mora dichotoma fit ; ante 



-unamquamque dichotomiam dilatatio accidit, unde rami ramulique 



quodammodo cuneiformes videntur — Apices bifidi; laciniis acutis 



— From inferne angufta canaliculars ut in praecedentib us, fuperne 



rami lati et faepius plani — Per totam paginam utrinque mammillae 



fub-pedunculatae fparguntur — Hse mammillae modo fieriles et quafl 



rudimenta novarum frondium, modo tuberculiferas, omnes incurvae 



— Subjiantia membranacea firma — Color variat rubens, brunnens — 



Altitude 2 — 5uncialis. 



Var. /3 omnia fere quae var. a habet — At frons angufta admodum, 



et linearis — Mammillae rarius proveniunt, et apices ramorum obtu- 



fiufculi 



The 



