^30 boey's spleenwort. 



■t-BOEY'S SPLEENWORT. 



Genus. — Asplenium. (See page 219). 



Species.— AcuTUM. Stipes very much longer than the frond, 

 glabrous, black at the base : frond elongate -deltoid, very much 

 divided : ultimate divisions linear, very acute : clusters of cap- 

 sules linear, very narrow, crowded. 



Filix minor longifolia, &c., Eay, Syn. (ed. 1), 51, 12 ; " Pluk. 



Aim. 150, Mant. 78, t. 282, f. 3," Ray, Syn. (ed. 2), 127. 

 Asplenium acutum, " Bo7-y, in litt. " Willd. Sp. PL v. 347 ; 

 Sadler, Adumh. Epiph. Hung. 28 ; Spreng. Syst. Veg. iv. 

 pars 1, 90; Szad. A' Mag. Plant, xi. No. 9; Sadler, De 

 Fil. Ver. 31 ; Presl, Tent. Pterid. 107. 

 Asplenium Adiantum-nigrum, |S., Sm. E. Fl. iv. 811. 

 Asplenium Adiantum-nigrum, va7: acutum, " Bory, in litt.'" 



Newm. F. 259. 

 ? Asplenium Adiantum-nigrum, var. Virgilii, " Bory, in litt." 

 ? Asplenium productum, Lowe. 



In addition to the authors above cited, Mr. Francis, and the 

 learned authors of the ' British Flora,' also mention this plant, 

 but do not name it either as a species or variety : there seems a 

 probability that it is also the " A. Adiantum-nigrum, var. Vir- 

 gilii," of botanical coUectors ; but, if so, it is desirable to sup- 

 press that name in favour of the earlier one, concerning which 

 no doubt has hitherto been expressed. The same observation 

 applies to a third name, the Madeiran A. productum of Lowe. 



For a careful reprint of all that has been written concerning 

 this fern, including the descriptions by Willdenow, Sprengel, 

 and Sadler, the reader is referred to No. 153 of the ' Phytolo- 

 gist,' (Phytol. V. 36). 



