DICKSON I A. 78 



ceolate acuminate deeply and sharply inciso-serrate lower 

 ones often distinct tlie sevratures bcarinpf the fructifications, 

 involucres suborbicular, outer valve at length convex inner 

 snuiUer both lueuibranaceous and united into a conii)ressed 

 almost complete cup. (Tab. XXV. 13.) 



Hub. Caraccas, Linden, 7i. 1(56. — Tliis is, in many respects, allied to tlie 

 jncceding, but diU'ers in the pinna; and segments bein<> narrower and more 

 acuminated, and sharply inciso-serrate. Involucres approaching those of 

 the Patania-secUon, but compressed, and standing forward, almost as in 

 Di'paria. 



Doubtful Species of tJiis Section. 



19. D. marginalis, Sw. ; " fronds pinnate, pinnae ensiform 

 auricled and incised above, upper ones coadunatc, sti^jcs vil- 

 lous." Siv. Syn. Fil. p. 138 and 36-2. Willd. Sp. PL v. v. p, 

 482. Polypodium marginalo, TJnuih. Jap. 337. — Ilab. Japan, 

 Thunherg. — This should perhaj)s be placed next 1). abrupta. 



20. D. linearis, Cav. ; " fronds sid)bipinnatc, pinna: alter- 

 nate linear, pinnules of the same form crenidate." Sw. Syn. 

 Fil. p. 138. Willd. Sp. PI. r. v. p. 483. Car. Prccl. 1801, n. 

 (583. — llab. Marianne and Philip])iuc Islands. — This plant 

 seems to be only known on the authority of Cavanilles. 



21: D. Japonica, Sw. ; "fronds subbipinnate, pinnules 

 rhombeo-ovate obtuse serrated and as well as the stipes pu- 

 bescent." Sw. Syn. Fil. p. 138 and 360. Willd. Sp. PL v. 

 V. p. 483. — Hab. Japan. — Swartz and Willdenow quote 

 under this species Polypodium crislalum Japonicum, Houtt. 

 Linn. Pfl. Syst. ]>. 208, t. 99, f. 3 ; but Brown gives this as a 

 synonym to his Davallia Jlaccida. 



22. D. striyosa, Sw. ; " fronds bipinnate, pinnae ensiform, 

 ])innules rhombeo-oblong rather acute incised, segments ob- 

 ovate dentate, stipes and rachis pubescent." Sw. Syn. Fil. p. 

 138. Willd. Sp. PL V. v. p. 484. Trichomanes, T/iiaib. Jap. 

 339. — Ilab. Jai)an. — I aui not aware that anything more is 

 known of this Fern than what is here given. 



(D. polypodioides, Sw. — This is i)robably the Davallia Jlac- 

 cida., Br. ; since Forster's Polypodium nudum, Prodr. n. 446, 

 is the authority for it, and the Microlepia polypodioides, Pr.) 



23. 1). Zeylanica, Sw. ; " fronds supradecompound, pin- 

 nules oblong obtuse sinuato-jiinnatifid, the segments obovate 

 gibbous dentate, stipes glabrous." Sw. Syn. Fil. p. 138 and 

 358. Willd. Sp. PL p. 489. — llab. Ceylon, Thunherg. — 

 Swartz comi)ares this with his D. Jlaccida and 1). dissecta, 

 and it may ])erha])s be of the Pa f an i a -section : but his re- 

 mark on the involucres is at variance with that genus. " In- 



