490 l >KTBtBUftON8 I 'imM Tiir NATIONAL BEBBABIUlt, 



no moans to be COnfased with any form Of />. /' trapnna. which is of tlio M 



Goniopteria Fee's detail figure almost certainly rep re a cn ta one of the lower 

 most pinnae probably the lowest or nexl to the loweet; at leaat in the specimen 

 at hand only the two or three lowermoel pairs of pinna? are contracted at the 

 ihown in the figure. Bee onder />. johnstoni, page i:» s . and under D. 

 latiuscula % page 108. 

 Dryopteris radlcana (L.) sfazon. 



Asplenium radicans 1.. Syst Nat. ed. LO. 2: 1328. 1750. 



Asplenium rhizophyllum L. Bp, PL ed. 2. 1640. 1768, Not lipletUum rhito- 

 phyUum I.. Bp. PI. ed. i. i<»7^ 17:.::: Bp. PI, ed. 2, 1536. L768, 



Asplenium rhizophorum I.. (Jen. rn. ed, •'». (emendation, at end). L764. 



Polypodium repent Bw, Prod. L32. 1788. Not Bw. Prod. 130. 1788, which is 

 ( u in pylom untiit ii i>< us. 



Poly podium reptans Gmelln, Byst Nat. 2 ■. L800. L701. 



Ctoniopteris reptans Presl, Tent. Pterid. 182, 1830, 



Phegopteris reptans l>. 0. Beaton, Ball, Ton-. Club 10: ]<>i. L883. 



Nephrodivm reptans Diels in Engl. vV Prantl, Nat. rn. i 4 : i»;x. 1890, 



Dryopteris reptans C. Chr. End. Fil. 288. 1906. 



The Asplenium radioans of Linnaeus (1750) was founded directly upon 

 Sloane's plate 20 and plate .':<». figure i. representing Jamaican plants, and apon 

 Plukenet's plate -~>:\. figure 4. 



The Asplenium rhizophyllum published in the second edition of the Species 

 Plantarum (page L540) was founded on the identical plates cited under 

 Asplenium radicans, with the addition of a reference to Browne's " Asplenium' 

 simplex minus reflectens y etc.," tins in turn baving been established partly (or 



perhaps wholly i on the Bloane and IMnkenet figures cited onder radicans and 

 rhizophyllum. 



Aspi, niuiu rhizophorvm I... 1704, is merely a change of name for rhizophyllum 

 of the second edition, page 1540; not rhizophyllum of the first edition, page 

 1078, and ^t' the second edition, page 1536, which is Camptosorus rhizophyllus. 



The three names ace thus Identical in application, having to do with the 



same plates; and the earliest is radicans, 17.~'.>. 



The plates cited represent a species of Dryopteris, — a common and well 

 known tropical American fern usually called Dryopteris (or Nephrodium) 

 reptans. The figures are unmistakable, Sh>ane"s plate 29 in particular repre- 

 senting a characteristic form of the typical Jamaican plant. Sloane's descrip- 

 tion is not less distinctive, 



Notwithstanding tins, later writers have apparently without exception sub- 

 stituted under one or another of the Linmoan names (usually rhizophorum) 

 a plant of another genus, namely a true Asplenium with glossy Stiff purplish 

 brown stipes and rachis, a plant like the original only in its wide range of 

 variation and in having a radicant tip. Swart/., in his Observationes Bo- 

 tanicae," seems to have been responsible for formally Introducing or at least 

 sanctioning this substitution, by noting (under .1. rhizophorum) that Sloane's 

 plate 30, figure 1. should be referred to his own Polypodium repens which had 



1 n published in 1788, founded on this same plate 30, figure 1. and IMnkenet s 



plate 253, figure b "Asplenium rhizophorum " was held by him to be bipln- 



nate. in mature plants, a character here Introduced for the first time. Because 

 of his /'. repens of page 130 (1788) (this is Camplyoneurum repens) the /'. 

 repens of patfe l.TJ becomes /'. n-ptnna in the Synopsis Filicnm (1806), a 



name given first by Gmelin (1701) who cited sloane's plate ."><». figure 1; and 



— i 



" Page oW. 1701, 





