— 383 — 



Spatha Spadix sessilis, cylindricus, ± 12V2-15 cm., longus et 



2"/2 cm. crassus, obtusus, viridis; ovaria prismatica, ± 5 mm. longa, apice 

 trimcata, ± 2 mm. crassa, 4 — 6 angulosa, paullo despressa; stigma breviter 

 lineare, vix elevatum, nigrum. 



The description is taken from a living spécimen cultivated in the 

 Buitenzorg Qardens under the name of P. celatocaulis N. E. Br.. flowering 

 January 1919.— The leaves of the offshoots and those of the flagelliform 

 branches agrée exactly with the diagnosis given by Engler quoted above, 

 but they are growing gradually larger till they become pinnated and then 

 suddenly much enlarged. 



Raphidophora pertusa (Rxb.), Schott, in Bonpl., V, 45; Engl. & 

 Krause, Pflzrch, XXXVII (IV, 23 B), Arac.-Monster., 47; Pothos pertusus, 

 Rxb., Flor. Ind., I, 455. 



Spécimens occurring in the Buitenzorg Herbarium, determined by 

 Engler, are distinguished in having the peduncle i IT'/a cm. long, enclosed 

 by a longer, soon filiform-dilacerate, coriaceous cataphyllum, the spadix 

 î 15 cm. long and 2'/2 cm. diam., tlie stigmata.oblong or shortiy linear, 

 slightly elevated. 



Raphidophora silvestris (Bl.), Engl., Pflzrch, XXXVII (IV. 23 B), Arac.- 

 Monster., 22, fig. 6; Calla silvestris, Bl., in Flora, 147. 



A spécimen gathered in /ava {Nirmala, C. A. Backer No. 11199) has 

 the lamina thick-coriaceous, to 25X5 cm., on a pétiole to 7 cm. long. 

 Primary veins fine, separated by 1-3 still finer secondery and tertiary 

 ones; fructiferous spadix to 4 7 cm. long and IV4 cm. diam. 



Raphidophora megasperma, Engl., Pflzrch, XXXVII (IV, 23 B), Arac.- 

 Monster., 29, fig. 9. 



A plant from Bornéo, cultivated in the Buitenzorg Gardens (Z, 63), 

 which, if not new, cannot be referred to any other species, is distinguished 

 from Engler's diagnosis by the following characters: Pétiole + 30 cm. 

 long, the sheath soon scariose and dilacerated. the knee -^ IV2 cm. long; 

 lamina rather coriaceous, ± 20— 35 X 5 — lO'/^ cm.; primary veins about 15 

 on a side, separated by 1 secondary and 2—4 finer tertiary ones, the 

 latter originating from the base or near the base of the primary ones 

 Peduncle 5-7 cm long. Spathe boat-shaped, yellow, the open portion 

 2 — 3 cm. broad, the pase truncate. Spadix 2 — 3 cm. long, 2/4— IV2 cm. 

 diam.; stigmata roundish-oblong, sessile when living, aparantly short- 

 stalked when dry. 



o Raphidophora apiculata, v. A. v. R. 



Caudex (ex sched.) usque ad 10 m alte scandens, paullum ramosus; 

 ramorum internodia in specimine 11'/'.' cm. longa. Foliorum petiolus 

 i 12'/, — 17'/e cm longus, relative gracilis, supra canaliculatus, basi 

 paullo dilatatus, ad vel fere ad laminam usque vaginatus; vagina mox 



