88 THE VOYAGE OF H.M.S. CHALLENGER. 



Acrostichum aureum, Linn. 



Acrostichum aureum, Linn., Sp. PL, p. 1069 ; Hook, and Baker, Synop. Fil., ed. 2, p. 423 ; Chapm., 



Fl. Southern U.S., p. 588. 

 Ghrysodium wdgare, Fee ex Griseb., Fl. Brit. W. Ind., p. 675. 



Bermudas. — Indigenous. Marshes, growing in dense thickets to a height of four or 



five feet—Moseley ; Lefroy ; Rein. 



A salt-marsh fern, widely distributed in tropical and sub-tropical countries. 



OSMUNDACE2E. 

 Osmunda cinnamomea, Linn. 



Osmunda cinnamomea, Linn., Sp. PI., ed. 1, p. 1066; Chapm., Fl. Southern U.S., p. 598. 



Bermudas. — Indigenous. Marshes in "Warwick, Pembroke, &c. — Hunter; Rein; 

 Moselcy ; Lefroy. 



Canada to Brazil, and in North-Eastern Asia. 



Osmunda regalis, Linn. 



Osmunda regal is, Linn., Sp. PI., ed. 1, p. 1065; Chapm., Fl. Southern U.S., p. 598. 



Bermudas. — Indigenous. Abundant in most of the marshes, where with Pteris 

 aquilina it forms the main feature of the herbaceous vegetation — Moseley ; Pembroke 

 Marsh — Lefroy; without locality — Rein; marsh in Warwick — Hunter. 



In nearly all temperate and tropical countries, except Australia and New Zealand 



CRYPTOGAM^.— CELLULARES. 



MUSOI. 1 



Tortula (Trichostomurn) bermudana, Mitt. 



Tortula {Trichostomurn) bermudana, Mitt., Journ. Linn. Soc. Lond., xv. 60. 



Dioica. Caulis humilis infra perichsetium innovans. Folia a basi erecta, rotundo- 

 quadrata, cauli appressa, cellulis parvis oblongis pellucidis areolata, exinde erecto-patentia, 

 stricta, sensim angustata, canaliculata, apice obtusiusculo, nervo in mucronulum excurrente, 

 margine integerrimo supra medium incurvo inflexove cellulis minutis rotund is obscuris, 

 perichsetialia pauca, basi ovalia, cseteroquin caulinis similia. Theca in pedunculo flavo 



1 By William Mitten, A.L.S., and limited to the species collected by the Challenger Expedition. The 

 authorities for some of the names have been altered in conformity with the rule observed for the other groups 

 of plants.— W. B. II. 



