Flora of Singapore precursors 48: Further notes on the genus Piper (Piperaceae) in Singapore

Further work on the genus Piper L. in Singapore has led to the need for a number of nomenclatural and taxonomic clarifications. Lectotypes are designated for ten names: Piper flavimarginatum C.DC., P. pachyphyllum Hook.f., P. crassipes Korth. ex Miq., Cubeba neesii Miq., P. burkillii Ridl., P. lanceolatum Roxb., P. ridleyi C.DC., P. velutibracteum C.DC., P. rostratum Roxb., and P. sarmentosum Roxb. A neotype is designated for P. latifolium W.Hunter, and previous confusion in the literature is clarified.