Wood Anatomy of the Neotropical Sapotaceae. XXXV. Urbanella.
Abstract
Urbanella was described by Pierre in 1890 based on Lucuma procera Martius from eastern Brazil, which became the generic type Urbanella procera (Martius) Pierre. Concurrently, Pierre described two new species, U. buchananiaefolia from the Peruvian Amazon and U. oblonga from Martinique. Within a few years these species were reduced to sectional status in the allied genus Calocarpum. Aubreville (1)3/ was uncertain regarding the generic status of Urbanella and included it under Calocarpum in his key to the Pouteriees. Later, Aubreville (3) included Urbanella in his key to the Sapotaceae but as a poorly known genus. Baehni (4) accepted Calocarpum as a valid genus but made Urbanella synonym. Cronquist (5) reduced Calocarpum to a synonym of Pouteria as did Pilz(7), the most recent student of the family. The woods of Calocarpum and Urbanella are quite similar in their physical appearance, but can be readily separated on the basis of parenchyma arrangement alone, which is reticulate in Calocarpum and banded in Urbanella. Additional differences are to be found in the ray height and intervessel pitting.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1982
- Accession Number
- ADA122935
Entities
People
- B. F. Kukachka
Organizations
- Forest Products Laboratory