226 



Kig. 30. a. D. semihastata (Kze.) O. Ktzc, 1. Pokppig. Leaf 

 X 'U; pinna x l'l..; fragment from aliove with free veins 

 and fragment from the underside witli anastomosing veins, 

 X 5. — b. D. Jamesoni (Hk.) C. Chr. Two lower pairs of pinna, 

 X *l-., segments from botli surfaces X I'l« (orig.). ~ c. D. War- 

 mingii n.sp. pinna x »I., and segment from both surfaces, x I'ls. 



174 



221. Dryopteris semihastata 

 (Kze.) O. Ktze. Rev. i: 291. 1891; 



C. Chr. Ind. 291. — Fig. 30 a. 

 Syn. Aspidium semihasiatam 

 Kze. Linnaea 9: 91. 

 1834; Mett. Aspid. 

 nr. 179. 

 LastreaPoeppigiana Presl, 

 Epim. bot. 40, 1849. 

 Type from Peru, ad flum. 

 Pampayaco, leg. Poeppig. A fi- 

 gure of the type-specimen (liy 

 Mettenius) is to be found in (B), 

 and with it agrees perfectly the 

 type-specimens of L. Poeppigiana 

 Pr. (hb. Presl!), which also was 

 collected by Poeppig "in Cuba"; 

 there is no doubt that Presl's 

 specimen is of the type-collection, 

 and tlie locality erroneous ; Poep- 

 pig collected in 1829 both in 

 Peru and in Cuba. 



D. semihastata resembles 

 much a small form of D. macro- 

 tis, and together with that spe- 

 cies its position within the genus 

 is doubtful. It lacks, namely, stel- 

 late hairs, and it is possible that 

 the two species are less cut mem- 

 bers of the group of D. patens; 

 still in general aspect they re- 

 semble other species of the pre- 

 sent group in which I place them. 

 Tlie accompanying figure will 

 give an idea of D. semihastata; 

 in pubescence, auricled, subentire 

 pinnæ, of which the lower ones 

 are reflexed, and also in venation 

 it agrees with D. macrotis, but it 

 is much smaller and with onlj^ 

 2—3 pairs of veins, and the au- 

 ricles are much shorter. 



