— 173 — 



quilaterae, i. e. semifacie siiperiore semilanceolatae, medio latissimae, semi- 

 facie iiiferiore semitriangiilares, ad basiii sensim valde prodiictam latissimae 

 piiiiiae superiores interdiiiii taiitum basin versus incisae et ceterum integrae ; 

 piniiae iiifimae longissimae, usque ad 30 cm. loiigae; costa supra canal- 

 iciilata et remote, breviter subulato-appeiidiculata. Segmenta omnia sub- 

 horizontalia, in partibus sterilibus serrulata; segmenta terminalia triangul- 

 ari-subulata; segmenta lateralia copiosa; lateralia superiora subremota, 

 breviter et late, oblique triangularia; pinnae terminalis segmenta lateralia 

 inferiora conspicue remota, linearia, levissime falcata, usque ad I272 cm. 

 longa et supra basin l'/g cm. lata, a média parte apicem obtusiusculum 

 vel acutiusculum versus sensim angustata, basi antica leviter, basi postica 

 valde (abrupte et oblique) dilatata, segmentorum infimorum basis postica 

 alam breviter cuneatam formans; pinnarum lateralium segmentum infimum 

 anticum perabrupte reductum, brevissime, latissime obtusissimeque triangul- 

 are, aliforme, segmentum infimum posticum iis pinnae terminalis simile 

 sed brevius; venae patentes, + l'/a mm. inter se distantes, graciles sed 

 distinctae, simplices vel furcatae; venae accessoriae complures (3—8), a 

 Costa usque ad marginem sinus (inter segmentos) protenSae. Sori longi, 

 basin segmentorum fere, apicem non attingentes. 

 Bornéo. 



Pteris talamauana, v. A. v. R., Bull. Btz., 1918, XXVIll, 42. 



Spécimens recently gathered in Sumatra and /«va bave the dimensions 

 larger, the fronds with 1—3 pinnae on each side below the terminal one, the 

 higher pinnae either short-stalked with the lowest postical lobe suddenly and 

 shortly decurrent upon the pétiole (forma typica) or adnate to the rachis 

 with the lowest postical lobe suddenly and narrowly, more or less long- 

 decurrent upon the rachis (forma decurrentipinna). 



terminalis e 



Pteris a b e r r a n s, v. A. V. R. 



Eupteris, Bipinnatifidae.—Canàtx breviter arborescens. Stipites usque 

 ad 80 cm. longi, cum rachide primaria straminei vel pallide fusci, juvéniles 

 squamulosi et probabiliter pubigeri, demum subtuberculato- et puncticulato- 

 asperuli. Frondes usque ad + 80 cm. longae. Pinnae infra pinnam terminalem 

 non paucae, profunde pinnatipartitae, caudatae vel acuminatae; pinna 

 basi lata lanceolata; pinnae superiores segmento postico 



infimo rachidi primariae adnato, ab 

 ea rectis angulis saepe distanti, 

 segmenta adjacentia non raro decus- 

 santi (fig. h); pinnae 2 — 3 inferiores 

 maximae, petiolulatae, usque ad 35 

 cm. longae, latere postico pinnulis 

 1 — 2 similiter pinnatipartitis minitae; 

 Costa supra spinosa. Segmenta ul- 

 Fig. h. tima firmiter herbacea, glabra, lin- 



eares, maxima usque ad 3V2 cm. longa et 4 mm. lata, apice obtuse rotundata, 



