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Chromosome numbers in Ludwigia sect. Oligospermum and sect. Oocarpon (Onagraceae)
Author(s) -
Zardini Elsa M.,
Peng ChingI,
Hoch Peter C.
Publication year - 1991
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/1222976
Subject(s) - onagraceae , sect , biology , botany , taxon , chromosome number , chromosome , hybrid , genetics , karyotype , gene
Summary Zardini E. M., Peng, C.‐I & Hoch, P. C.: Chromosome numbers in Ludwigia sect Oligospermum and sect. Oocarpon (Onagraceae). ‐ Taxon 40: 221–230. 1991. ‐ ISSN 0040‐0262. Chromosome numbers are reported from all nine species (12 taxa) of Ludwigia sect. Oligospermum and sect. Oocarpon , including three not reported previously: L. hookeri ( 2n = 32), L. peduncularis ( 2n = 32), both of L. sect. Oligospermum , and L. torulosa ( 2n = 16) of the monotypic L. sect. Oocarpon. An earlier count of n = 8 for L. hookeri was based on a mis‐identified specimen of L. peploides. Counts are also reported for three naturally occurring hybrids. Chromosome counts from a total of 141 strains are included, with full voucher information for each. New data are compared with all previous reports for the species of these sections.