- 18 — 



Sori deflexed; indusium cup-shaped. 

 New Guine'a. 



Dictyopteris carinata, v.A.v.R. 



Arcypteris. — Stipitesala exclusa + 20— 25 cm. lotrgi, squamis patentibus, 

 deciduis, fuscis, lineari-subulatis, integerrimis ornati. Frondes herbaceae, 

 glabrae, oblongo-spathulatae, + 65 cm. longae, parte inferiore anguste 

 alaeformes, decurrentes, parte superiore + 45 cm. longae et 30 cm. latae, 

 pinnatipartitae, acuminatae; costa subtus acute quadrangularis, lateraliter 

 canaliculata, supra plana sed carina prominenti munita. Segmenta infra 

 apicem sinuatum, subulatum + 9 — 10 ulrinque, inferiora sat remota, 

 superiora sensim minora et magis conferta, maxima lanceoiato-subulata, 

 17 '/2 — 22'/2 ^m. longa et 2'/2 — 4 cm. lata, acuminata, late subsinuato-repanda, 

 basi ala sat lata connata; costulae prominentes; venae primariae distinctae, 

 obliquae, marginem fere attingentes; areolae numerosae, venulas libéras 

 includentes. Sori abundantes, parvi, irreguläres, partim confluentes. 



Sumatra {Bengkoelen, Lebong Tandai, C. J. Brooks No. 379/S). 



Dictyopteris hemiteliiformis (Rae), v. A. v. R., in Bull. Btz., 1913, 

 XI, 7; Mai. Ferns & All., Suppl., 321; Pleocnemia Lcuzeana, Pr.,var. hemi- 

 teliiformis, Rae, Flor. Btz., I, 194; v.A.v.R., Mai. Ferns, 173; Aspidium 

 Leuzeaniim, Kze, var., C. Chr., ind. Fil., 79. 



Rachises naked in the adult fronds. 



Also in Sumatra (Deli, Bandarbaroe, J. A. Lörzing No. 433Ö). 

 Diplazium porphyrophyllum, v.A.v.R. 



Eudiplazium. — Rhizoma ascendens. Stipites approximati, 2 — 12 cm. 

 longi, cum costa (rachide) squamulis copiosis, squarrosis, atro-brunneis 

 vestiti. Frondes plus minusve coriaceae, glabrae sed subtus ad costulas 

 copiose et ad venas parce obscuro-squamulosae, subspathulato- vel lineari- 

 oblanceolatae, acuminatae, profunde pinnatifido-pinnatipartitae, parte inferiore 

 sensim angustatae, basi non raro pinnatae. Segmenta subhorizontalia, approx- 

 imata, subrecta ad falcata, integerrima vel apice crenulata, obtusa ad acuta ; 

 segmenta mediana vel supramediana inaxima, + ^/4 — 1 cm. lata; segmenta 

 inframediana sensim minora, infima subsemiorbicularia et quam lata vix 

 longiora vel alaeformia et quam longa multo latiora; venae plus minusve obli- 

 quae, usque ad 10-18 utrinque, plerumque furcatae (infra mediam), superiores 

 simplices. Sori interdum breves et ad venas terminales, plerumque longi et 

 costulam marginemque attingentes vel fere attingentes ; indusium brunneum. 



The two specimens on which this description is based are not quite 

 identical, but they are too closely allied to keep them separated. — Near D. 

 porphyrorachis Diets and D. porphyrolepium v.A.v.R. 



Sumatra {Lebong Simpang, C. J. Brooks No. 322/S), Ceram{Wai Lan- 

 tabi, L. Rutten's Explor. Commiss., Coll. Kornassi No. 1240). 



