DICKSOXIA. 461 



3*. D. ffuatemalensis. Baker ; arborescent ; fr. oblong-deltoid, tripinnate ; 

 pinnce oblong-lanceolate, 2 ft. or more 1., 10-12 in. br. ; pinnl. linear-acnminate, 

 5-f in br. ; «^m. close, lanceolate, falcate, denticulate, llin.br.; texture sub- 

 coriaceous; under surface glaucous, the ribs thinly pilose ; lower renufes sub- 

 pinnate ; stiri minute, 8-10 to largest segments, imbricatod, placed obliquely 

 with the edge ; valves of inv. equal, hemisphericaL — Cibotium guatemalense, 

 Reich, fit. Kuhn, Linn. 36. p. 152. 



Hab. Goatemala, Scdvin <fc Godman, Wendland. 



5*- D. regalis. Baker ; arborescent ; fr. oblong-deltoid, tripinnate ; rachises 

 calvate ; pintUE oblong-lanceolat*, l|-2 ft. 1., 10-12 in. br. ; pinnl. BessUe, 

 1-1 J in br., cut down to rachis or a narrow wing ; iegm. close, lanceolate-falcate, 

 inciso-p inn at ifi d, 2 lin. br. ; texture subcoriaceous ; under side glabrous, slightly 

 glaucous ; venules pinnate in the lobes ; sori 10-12 to a segment, close, parallel 

 with the edge ; inv. with inner valve overtopping the outer. — Cibotium regale, 

 Hort. lAnden. 



Hab. Mexico. 



7*. D. fibrosa, Colenso ; arborescent ; it. very short ; scales dense, fibrillose, 

 bright-brown ; fr. rhomboid, tripinnate, 3-4 ft. L ; rachises grey, densely pilose ; 

 central /nnniE lanceolate, 6-9 in. I. ; pinnl. sessile, linear, 1-1^ in. 1., J-f in. br. ; 

 segm. crowded, deltoid, falcate^ acute, toothed, fertile deeply pinnatiBd ; texture 

 coriaceous ; under surface more or less pilose ; sori 4-6 to largest segment, much 

 smaller than in antarctica.—Hk. Sp. FU. 1. p. 68. *. 23. B. D. intermedia, 

 Colenso. 



Hab. New Zealsmd. 



7*. D. lanata, Colenso ; eaudex low ; sJ. 1 ft. or more 1. ; basal scales very 

 dense, fibrillose, dark-purple ; ft: rhomboid tripinnate, 3-4 ft. L ; rachises 

 stramineous, glossy, naked ; central pinnce dblong-lanceolate, J-1 ft. 1. ; pinnl. 

 lanceolate, stalked, 1^-3 in. I., |-f in. br. ; barren segm. lignlate-oblong, den- 

 ticulate, I5-2 lin. br., lowest often free ; texture more rigid than antarciica ; both 

 sites glabrous ; sori crowded, 6-12 to largest segment, filling up the whole of it 

 except the midrib.— fli. ^. FU. l.p. 69. t. 23. C. D. laevis, Reward. 



Hab. New Zealand. 



9. D. Sellowiana, var. j8, Karsteniana (Klotzsch) ; pinnl. broader than in the 

 Brazilian plant (^-f in.), and sori rather larger. — Karst. Fl. Columb. t. 194. 

 D. gigantea, Karst. t. 193. y, Spruceana (Mett.) ; pinnl. stUl broader (1 in.), 

 narrowed gradually from the base to an acuminate point ; sori larger ( j line 

 broad), distant. — ^D. Spruceana, Mett. Ktihn, Linn. 36. p. 153. 



Hab. p, Gaatemala and Andes of Columbia, y, Tarapoto, East Pern, Spruce, 4728. 



10*. D. YounguB, C. Moore ; arborescent ; st. 6-9 in. 1., castaneous, densely 

 clothed with firm bristly scales, J-J in. 1. ; fr. oblong-deltoid, tripinnate ; pinnce 

 oblong-lanceolate, 1 ft. 1., 6-6 in. br. ; pintil. snbsessile, lanceolate, 2-3 in. 1., 

 f-1 in. br. ; segm. lanceolate, close, 2 lin. br., sterile toothed, fertUe deeply inciso- 

 pinnatifid ; texture rigidly coriaceons ; both sides green, the ribs below slightly 

 pilose ; sori 6-8 to lower segments, | lin. br. ; valves of inv. round, hard, 

 glabrous. 



Hab. New South Wales. — Abont eight pinnules to lowest half-foot of a weH-grown 

 pinna. 



