174 ■D''. GooDENOUGH and Mr. Woodward' j- Obfervatlons on 



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

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

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

 chotomies forming fometimes almofl: right angles. We have per-< 

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



39. FuCUS MAMMILLOSUS. 



F. fronde dichotoma ramis fupenie dilatatis, utrinque mammil- 



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



9, 10. Mori/on^ Hifl. Ox. 3. p. 646. /. 15. /. 8./ 13. bona. 



F. canaliculatus var. /3. F/. Ang. p. 583. 



——— var. y. Withering^ vol. 3. p. 250. 



F ceranoides var, g. Fl. Scot. p. 917. 



yar. /3 — fronde angufta lineari apicibus acutiufculis. 



F. ceranoides var. ^. Fl. Scot. p. gi6. 



Habitat in rupibus et faxis fubmarinis frequens — ^ prope Haftings, 



fed parce. 



Radix callus expanfus — From bafi furculofa, unde plurimi caules 



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



unamquamque dichotoraiam dilatatio accidit, unde rami ramulique 



quodammodo cuneiformes videntur — Apices bifidi; laciniis acutis 



•—Frons inferne angufta canaliculata ut in praecedentibus, fuperne 



rami lati et faspius plani — Per totam paginam utrinque mammilla* 



fub-pedunculatae fparguntur — Hse mammillEe modo fteriles et quad 



rudimenta novarum frondium, modo tuberculiferae, omnes incurvae 



—Subftantia membranacea firma — Color variat rubens, brunneus — 



Altitudo 1 — 5uncialis. 



Far. jS omnia fere qua var. « habet — At frons angufta admodum, 



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



iliufcull 



The 



