42 A- Engler. — Araceae-Lasioideae. 



expansa 7 — 8 dm longe atque lata, 3-secta vel-partita, partitionibus I. 3 — 4 dm longis, 

 parlitione media a medio iterum tripartita, duabiis lateralibus infra medium bipartilis, 

 Omnibus irregulariter atque inaequaliter, inferne subopposite pinnatipartitis, partitionibus 

 ultimis plerumque lacinulae oppositis, saepissime oblique oblongis, acutis, interdum bifidis, 

 0,5 — { dm longis costis basi atque hinc illinc inter pinnas denudatis, nervis lateralibus 

 I. et IL partitiouum angulo acuto abeuntibus, nervum collectivum a margine remotum 

 componentibus, utrinque prominentibus, venis reticulatis paullum prominulis. Pedunculus 

 spadicis floriferi brevissimus, vix \ cm supra terram eminens fructigerus elongatus, 

 I ,ö cm longus inferne laevis, apicem versus verrucosus. Spatha saturate violascens, oblonga, 

 cuspidato-acuminata, persistens <,5 dm longa, 0,7 dm lata. Spadix breviter stipitatus 

 pallide ex roseo purpurascens florifer, 2 cm longus, fructifer multo longior. Perigonia 

 t — 5 — 6-tepala coerulescenti-purpurea. Stamina 4 — 5 — 6. Ovaria 4-locularia, ovulis 

 prope basin affixis. Baccae subglobosae 8 — iO mm longae, stilo brevi coronatae, % — 

 3-spermae. — Fig. 2, <5, \S I — L. 



Hylaea: Surinam (Wullschlägel n. <096 — Herb. Brüssel); Brit. Guiana (Parker 



— Herb. Kew); Französisch Guiana (Melinon — Herb. Mus. Paris). 



2. D. asperum K. Koch in K. Koch und Fintelmann, Wochenschrift f. Gärtnerei 

 und Pflanzenkunde 1859 S. 259; Lem. in 111. Hort. (1866) 14 (cum icone); Saunders 

 Refug. V. 382; Engl, in Mart. Fl. Bras. III. 2. (1879). — D. elatum Mast, in Garden. 

 Chron. (1870) I. 344, Fig. 58, 126 t. 24; Engl, in DG. Mon. Phan. II. (1879) 283. — 

 D. Ämorphophallus nivosusLem. in 111. Hortic. (1865) t. 424. — Ghersydrium Jararaca 

 Schott in Oest. Bot. Zeit. (1865) p. 73. — Folii petiolus usque 3 m altus, inferne 

 3 — 4 cm crassus, basin versus verruculis minhnis hinc inde conjunctis alternatim seria- 

 libus longissime exasperatus, maculis latissimis et elongatis livido-viridibus et brunnes- 

 centibus vel lilacinis ornatus, lamina umbraculiformis tripartita, \ m diametiens (in 

 cultura), partitionibus I. aequalibus bipartitis, omnibus partitionibus II. irregulariter atque 

 inaequaliter pinnatipartitis, partitionibus ultimis oblongis vel oblongo-Ianceolatis, acutis 

 nervis I. et U. angulo acuto abeuntibus, nervum collectivum a margine remotum com- 

 ponentibus. Pedunculus 1 dm et ultra longus, cataphyllis lanceolatis velatus. Spatha 

 1 — 2,5 dm longa, apice valde incurvata, fornicata, firmissime coriacea, persistens, extus 

 inter nervös asperulo-granulata, brunneo-grisea, antice versus apicem sensim dilatata, 

 alte cucullata, intus atroviolacea. Spadix 4 — 5 cm longus, 1,5 — 2 cm crassus, breviter 

 cjlindricus medio superiore proterandrus. Perigonia 5 — 9-tepaIa, tepalis unguiculato- 

 spathulatis. Stamina 6 — 9; Ovaria 3 — 4-locularia, ovulis ad medium affixis, stilus ovario 

 longior conoideus, purpureus, stigmate parvo. Baccae turbinatae 12 — 15 mm longae, 

 4 cm crassae, stili filiformis vestigio 2 mm longo coronatae. Semina 7 — 8 mm longa. 



— Fig. 16. 



Var. Wallisii (Regel) Engl, in Martins Fl. Bras. III. 2. (1878) 126, in DG. Mon. 

 Phan. U. (1879) 284. — Ämorphophallus Wallisii Regel in Gartenfl. (1861) p. 322 

 et (1862) t. 350. — Ämorphophallus fmiestratus Linden Catal. — Dracontium Wallisii 

 K. Koch in Ender Ind. Ar. p. 45. — Foliorum partitiones secus nervös plus minusve 

 pallide canescentes pellucidae. 



Hylaea: mit der Varietät in der Prov. Para (Martius — Herb. München, Bara- 

 quin, Wallis nach Regel), Lago de Kingkini (Spruce — Herb. Kew). 



Einheimischer Name: jararaca-taja. 



Nota. >D. elatum Mast.« ex Africa occidentali (Sierra Leone] in hortum W. Bull intro- 

 ductuin est, attaraen verisinailiter in hanc regionera antea ex America allatum fuit. 



3. D. foecundum Hook. f. in Bot. Mag. (1885) t. 6808. — Tuber tuberculis per- 

 plurimis confertis epigaeis fusiformibus cinctum. Folii petiolus fere 2 cm longus, sparse 

 minute verrucosus, inferne 1,7 cm crussus, late bicanaliculatus, superne teretiusculus, e 

 basi ad apicem usque griseo-marmoratus, lamiua fere 1,5 m diametiens tripartita, 

 partitiones interruptim pinnatifidae vel piunatipartitae laciniis vel segmentis polymorphis, 

 aliis minutis obtusis 5 cm longis, aliis majoribus lanceolatis vel ovato-lanceolatis sessilibus 

 vel basi decurrentibus inaequilateralihus 2 — 3 dm longis, undulatis vel lobatis vel immo 



