Dennsteedtia. Desmopodium. 



Dicksonia scandens, SI. Enum. 240 ; HooTc. Sp. Fil. i. 78; Hasskl. Fil. 



Jan. 56 ; et Hort. far. 



Dennstsedtia Zippeliana, Moore, Synopsis ante xevii. 

 Dicksonia aculeata, Zippel. MS.f. Kze. 

 Dicksonia moluccana, Moritz, Verz. 

 Dicksonia Zippeliana, Kze. Sot. Zeit. iii. 833 ; vi. 215 ; Id. Lin. xxiii 



249, 309; Gen. Fil. 335; Metten. Fil. Lips. 106. 

 Sitolobium ? scandens, Brack. U. 8. Expl. Exped. xvi. 275. 



soHda, M. - ? ..... 



Dicksonia solida, Kze. Lin. xxiii. 248. 

 Sitolobium solidum, Lodd. Cat. f. Kze. 



Smithii, M. Philippine Islands (Cuming 108, 145, 232). 



Dicksonia neglecta, Fee, Gen. Fil. 335 (Cuming 108 in part). 

 Dicksonia Smithii, Hook. Sp. Fil. i. 80, t. 28 D ; Fee, Gen. Fil. 335. 

 Sitolobium flaecidum, J. Sm. Hook. Journ. Sot. iii. 418 (excl. syn.) 



Sprucei,* M. Equador (Spruce 5350). 



Dicksonia Sprucei, 3foore Hb. 

 stenochlsena, M. Bourbon. 



Dicksonia stenochlfena, Fee, Gen. Fil. 335, 336. 

 tenera, Moore. Dennstsedtia apiifolia, . 

 Zippeliana, Moore. Dennstsedtia scandens. 



DennatopMebium, () Presl, Epim. Sot. 17, 258. 



c-ristatum, Presl. Hymenophyllum cristatum. 

 Jamesoni, Presl. Hymenophyllum Jamesoni. 

 tomentosum, Presl. Hymenophyllum sericeum. 



, J- Smith, Sched. Hb. Ind. Or. 

 auriculatum, 3. Sm. MS. Polypodium subvillosum. 

 coniifolium, J. Sm. MS. Polypodium subdigitatum, 

 elongatum, J. Sm. MS. Polypodium eloiigatuin. 

 ornatum, J. Sm. MS. Polypodium ornatum. 



* D. Sprucei : fronds large (12-18 ped. f. Spruce) bipinnate ; pinnae (? pin- 

 nules) 12-15 in. long, distant, opposite, spreading, sometimes deflexed and 

 curving upwards, lanceolate or elliptic, sessile, very deeply pinnatifid or at the 

 base pinnate, the segments adnate, oblong, acutish, slightly falcate, (l-2i 

 inches long and about -inch wide), auriculate at the anterior base where they 

 are more or less separated from the rachis, decurrent at the posterior base, 

 the margin nearly entire, or more frequently crenate-lobate and recurved; 

 main rachis stout, marked with short linear protuberances (? bases of abraded 

 scales), the secondary ones, as well as the costse veins and margin pubescent 

 with short coarse brown somewhat cobwebby hairs ; sori marginal in the 

 sinuses of the lobes, roundish or oblong, scarcely two-lipped ; " rhizome creep- 

 ing." A very distinct fern distributed in Mr. Spruce's latest collections, and 

 having something the aspect of Dicksonia Plumieri. Mr. Spruce describes 

 it as either climbing or ascending among the branches of small trees. Our 

 specimen, which seems to be the apex of a large frond, is nearly 4 feet long, 

 and its lowest pinnae 6-8 inches, deflexed at an angle of 45 deg. from the main 

 rachis. The rachides of the pinn* become flexuose near their apex. 



[Gen. 48. Sp. 1251 



