THAI FOREST BULLETIN (BOTANY)
Volume 44, No. 01, Month JANUARY, Year 2016, Pages 53 - 73
Hybrids and the flora of thailand revisited hybridization in the south-east asian genus cryptocoryne (araceae)
Niels Jacobsen, Jan D. Bastmeijer, Josef Bogner, Hendra Budianto, Herman Bernard Ganapathy, Takashige Idei, Isa B. Ipor, Thirumalai Komala, Ahmad Sofiman Othman, Rusly Rosazlina, Joshua Siow, Suwidji Wongso, Marian Orgaard
The South-East Asian genus Cryptocoryne has been shown to hybridize more frequently than expected. Data are presented on the
known naturally occurring hybrids including information on their discovery, naming, and recognition as hybrids. Many artificial
hybrids produced over the years indicate that there are only relatively few barriers to crossing. A heterosis effect is prevalent in many
encountered Cryptocoryne hybrids. Vegetative propagation is clearly an advantage in the establishment of hybrid populations and
also in detecting the hybrids, since inferior hybrids have disappeared naturally. Our results on Cryptocoryne also suggest that when
the South-East Asian floras become as well-known as temperate ones, the number of natural hybrids will be similar to those presently
known from temperate regions.
Keywords
Artificial hybrids, heterosis, Thai Flora, tropical natural hybrids, vegetative propagation