48 ADIANTUM. 



brous, lachis fenugineo-pilose with woolly hairs. Klolzsvh, 

 in Liniuea, viii. p. 555, et in Otio, PL Exsicc. Cub. n. 83 

 {in Herb. J. Sm., not of Presl). A. melanoleuciini, Willd. 

 Sp. PL \.p. 443. A. lielum, Presl, Tent. Plerid. p. 158. 

 A. cristatum, Kunze, in Linncea,iK.p. 81. — Plum. Fil. i. 96. 



Hal). West Indian Islands. St. Domingo? P/u»j?>>-. Jamaica, PF//es, 

 Mac Nab. Cuba, Poepjr'nj {Kunze) ; Otto, Klnlzsch, n. (3.3 {in Herb. J. 

 Smith). — Perhaps two better marked sjiecies of Adiantum of tlie pre- 

 sent section at least, can scarcely be found than A. cristatum, L. and A. 

 Kunzeanum, and yet few have been less understood. The excellent 

 Swartz probably gave rise to the confusion, by quoting under the A. crista- 

 tum of Linnaeus, the figure in Plum. Fil. t. 96. He observes, it is true, 

 " huic (m.s7. L.) similima sed forte divevsa." Thus, too, throwing a doubt 

 on the true cristatum of Linna'us. Plumier's figure now quoted is a fair 

 representation (exaggerated as most of his figures are) of the fern called 

 cristatum by Kunze ; who, as well as other botanists, has been induced 

 to call the true cristatuyn by the name of A. striatum. We have again a 

 choice of name for Kunze's cristatum. Willdenow by his reference to 

 Plumier " A. lunulis albicantibus signatum, p. 70, f. 9t)," certainly seems 

 to have had this fern in view in his Spec. Plant. : but the name, however 

 it may answer to Plumier's description, does not answer to the plant. A. 

 latum, Presl, appears to be nowhere described, whereas Dr. Klotzsch has 

 well distinguished the species, and I gladly adopt his name. 



97. A. crenahim, Willd. ; fronds bipinnate, lower pinnae 

 bi- or tripartite, pinnules ovato-oblong superior base trun- 

 cated, inferior abscisso-cuneate, superior margin crenated and 

 as well as the apex serrated, sori oblong, stipes glabrous. 

 Willd. Sp. PL V. p. 446. Plmn. Fil. t. 53. 



Hab. Hispaniola, Martinique {Willd) — On this I dare nut hazard an 

 opinion, although a figure is quoted in Plumier. Sprengel refers it to A. 

 politum, H. B. K. Presl takes no notice of A. politum, but retains A. cre- 

 natum, and brings to it " A. striatum, Poeppig, Fil. Exsicc. Kunze:" so 

 that if Kunze's A. striatum (Poeppig), be the same as ours, this species is 

 identical with A. cristatum, Linn. 



98. A. politum, H. B. ; "fronds bipinnate, lower pinnae bi- 

 pinnate, pinnules oblong dimidiate obtuse truncated at the 

 base, superior margin subinciso-dentate, the teeth obtuse 

 bifid, involucres lunate, stipes and rachis shining glabrous." 

 Willd. Sp. PL V. p. 442. H. B. K. Nor. Gen. Am. i. p. 20. 



Hab. Cumana, S. America, Humboldt and BonpJav.d. — As observed 

 ■awAex A. crenalum, this species is considered by Sprengel identical with 

 that. M. Kunth observes of this Bonplandian plant, "in Herliario Bonp- 

 landiano non vidi.'' 



99. A. pyramidale, Willd. ; " bipinnate, lowest pinna bi- 

 pinnate, pinnules rhombeo-ovate serrated terminal one very 



