. 1 



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MAXON STUDIES OF TROPICAL AMERICAN FERXS. 477 



for A. Jiastatutn Klotzscli, a species w'-Licli is certainly of tlie closest alliance, 

 if iudeed it should not be merged witli A. saUcifoUam, The typical A, has- 

 taiumj well illustrated by Hooker/' is seen in Fendler^s 144, A'enezuela (iK^rb. 

 (iray), between which and the AVest Indian A. saJicifoliiint there is almost 

 every intermediate stage. It seems not unlikely that A, salicifolium (verum), 

 A. auriculafum 8w., A. srmicordattnn Raddi, and less certainly A, hastafum 

 Klotzsch are all referable to a single variable polymorphic species, to which 

 must probably be added several '' species" i)r(tposed by various writers, for 

 example, the A, blcrenatutn of Liebmaun, which api)arently is but the typical 

 form of .1. .salicifolium. 



The following species either are closely related to A, salicifoUtim 

 or have been confused nndei' tliat name in the herbarium material 

 examined : 



Asplenium integ-errinaum Spreng, Acad, C'aes. Leoj). Nov, Act, 10: 231. 1S21. 



Plate LVI, Figure 2. 

 Asplenium salicifolium intcgcrrimum Mett. Abliand. Senck. >:at. Gesell. 3: 



145. ISGO. 

 The present species was described briefly from Porto Rican specinuuis, has 

 since been collected in Porto Rico, and jjrobably forms th(i j;reater part of 

 Writ^ht's no. 841 from Cuba. (See footnote undt^r .4. 7'€ctanfjalarej following.) 

 It was originally descrUted by Sprengel in these words: 



A. fronde pinnata, pinnis alternis petiolatis lanceolatis acuminatis basi cunea 

 tis, rachi marginata, sorls parallelis. 



In Portoricco ad arborum radices. Bcr{ia\ 



Stipes semi teres, glaber. Frons bit)edalis, lanceolata. Pinnae spitbameae 

 glaberrimae, lanceolatae, acumiuatae, integerrUaae, marglne subdiaphano. 



Cum nulla aUa specie coufundenda. 



The following more complete description is drawn mainly from a series of 

 specimens collected by the writer in the Yateras region of Oriente (Santiago) 

 I'rovince, Cuba, in tlie heart of the territory so thoroughly botanized by Wright: 



Fronds few (2 or 3), 75 to SO cm. long, lax, borne closely. Rhizome short- 

 repent, with a noticeable tuft of long tiliform dark brown chalT; stipe 25 to 

 'dO cm< long, dull brownish straniin(H»us, stout, sulcate in drying; lamina very 

 chartaceons, 50 to 55 cm. long, simply pinnate, ovate, comi)rising about S pairs 

 of narrow-si)aced ascending subopposite to alternate pinnte and a large termi- 

 nal segment about the size of the basal pinme; rachis narrowly alate; pinnae 

 nearly of the same size and outline, the 5 or G lower pairs subpetiolate, 15 to 

 10 cm. long, 2.5 to 2.7 cm. broad, the others 2 to 3 cm. shorter, all exactly 

 lanceolate, straight or slightly falcate, attenuate in the outer third, at the base 

 iK^arly equal, the superior margin cut away to about 40^^, the inferior to about 

 'M)"", the base thus strongly cunea te; margins absolutely entire througliout, 

 hyaline; sori about 12 pairs to the iiinna, equulistaut or slightly nearer the 

 nndvein, 1.5 to 2 cm. loiig, l)onie at an angle of about 25° on the anterior branch 

 of the mostly twice or thrice dichotomously forked veins; indnsium firm, 

 narrow, 1 mm. wide, persistent, reciu'ved and inconspicuous at maturity. 



A. Intcgcrrimiun may have a considerable range through the West Indies. 

 It appears not to occur in Jamaica, if one may judge from recent large collec- 

 tions, mainly of ferns, from that island. Fendler's no. Uij from Trinidad 

 (G, N) may be referred here tentatively, though the narrow spreading pinnm 

 (mainly opposite), the more reduced upper pinna\ and the dci'ply cleft terminal 

 segment indicate a form possibly distinct. 



^Sp. Fil. 3: pL 112, 



