242 



190 



of the lower pair truly anastomosing and sending a branch to the sinus, where 

 the next pair meet. Sori medial, small, furnished with a small, ciliate indusium. 

 Sporangia glabrous. — The terminal pinna is not so distinct as in Eugoiiiopteris; 

 it is broader and deeply lobed at base, but the basal lobes is much shorter than 

 the uppermost pair of lateral pinnæ. 



A have seen the type-specimens only. 



241. Dryopteris curta Christ, Bull. L'Herb. Boiss. II. 7: 263. 1907. (p.p.) — Fig. 35. 

 Type from Costa Rica: buissons et broussailles de Tuis, 650 m, leg. A. 



ToNDUZ nr. 11323 (CI, W). 



Habit of D. Eggersii and D. scabra but smaller and its rachis very hairy 



by hairs of two kinds intermixed: 1) numerous, short stellate hairs with 3 — 5 

 short, simple branches on a short stalk, and 2) rather nume- 

 rous, much longer, patent hairs, which often are cleft at the 

 apex. — Stipe 3—4 dem long, sulcate, stellato-pulverulent and 

 with scattered small, flat scales. Lamina membranous, 3 — 4 

 dem long, broadest at the base, upwards gradually narrowed 

 into a pinnatifid apex. Pinnæ all sessile, 6—7 cm long, 

 1' 2 cm broad, the edges nearly parallel, truncate at base, 

 shortly obtuse at the point, the basal pairs reflexed, the upper 

 ones horizontal, the upperside throughout hairy by numerous 

 adpressed antrorse simple hairs; costæ beneath very hairy 

 like rachis, veins and leaf tissue finely pubescent by simple, 

 erect hairs. Pinnæ incised scarcely more than halfway down 

 to the midrib into close, falcate, obtuse, entire segments. 

 Veins 8 -9-jugale, simple or, not rarely, forked, the lower 2—3 

 connivent to sinus. Sori medial, furnished with a subpersi- 

 stent, setose indusium. Sporangia glabrous. 



In the most complete specimen (W) the rachis bears a 

 small gemma. 



Fig. 35. D. curta Clirist. 



Pinna X */& and segments 



seen from both surfaces 



X VIo (orig.). 



242. Dryopteris heterotricha n. sp. Fig. 36. 

 Syn. Dryopteris nepbrodioides var. setulosa Hieron. Hed- 

 wigia 46: 327. 1907. 

 Type from Ecuador, Mt. Tunguragua, leg. Spruce nr. 5298 (H, L, RB), 

 and gathered in the same locality by StObel nr. 849 (B) and in valle Pastaza by 

 the same nr. 931 a (B). 



Rhizomate?. Stipitibus ad 1 dem longis, quadrangularibus, brevissime stella- 

 lim pulverulentis, versus basin sparse squamosis, squamis adpressis, ferrugineis, 

 sparse stellalo-ciliatis. Lamina 6—7 dem longa, bipinnalifida, versus apicem pinna- 

 tifidum sensim attenuata, herbacea, atroviridi. Rachi pilis stellatis brevissimis dense 

 pulverulenta et pilis cylindricis, crassis, rufis, nitidis apicibus sæpe furcatis onusta, 



