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Project Name Data (Last Modified On 11/19/2012)

Flora Data (Last Modified On 11/19/2012)
Species PIPER aristolochiaefolium (Trel.) Yuncker
Synonym Piper san-joseanum var. aristolochiaefolium Trel. in Contr. U. S. Nat. Herb. 26:22. 1927.
Description A shrub, 1.5-2 m. tall, twigs somewhat zig-zag, granular-papillate, moderately slender; leaves bullate and dark green when growing, rather narrowly ovate, apex long-acuminate, base deeply cordate, sinus open, obtuse, with parallel margins, 8-9 cm. wide X 15 cm. long, palmately 5-nerved, the innermost laterals not continuing to the apex, the midrib strongly branched upward, the nerves and cross-connecting- anastomosing nervules prominent beneath, the innermost pair of laterals entirely free from the midrib, with scattered, soft, white hairs above, paler and with the nerves granulate-papillate or subhirtellous beneath, ciliate, the hairs restricted to a single marginal row, pale-yellow-glandular-dotted beneath, drying thin, trans- lucent; petiole 3-4 cm. long, vaginate to about the middle, scarcely winged, granulate-subhirtellous. No inflorescence present.
Habit shrub
Specimen CANAL ZONE: wet forest, hills north of Frijoles, "scarce," Dec. 19, 1923, Standley 27524 (U. S. Nat. Herb., TYPE).
Note The specimen on which this species is based is sterile but the vegetative char- acters are believed to be sufficiently different from P. marginatum to warrant specific rank. It differs from that species chiefly because of the 5-nerved leaves, the midrib strongly branched upward, the lateral nerves not continuing to the apex, the ciliation restricted to a single row of marginal hairs, and the shape of the basal sinus.
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