| Goniothalamus chartaceus | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Magnoliids |
| Order: | Magnoliales |
| Family: | Annonaceae |
| Genus: | Goniothalamus |
| Species: | G. chartaceus |
| Binomial name | |
| Goniothalamus chartaceus | |
Goniothalamus chartaceus is a species of plant in the family Annonaceae. It is native to Vietnam.[1] Hui-lin Li, the Chinese botanist who first formally described the species, named it after its papery (chartaceus in Latin) leaves.[2][3]
Description
It is a bush or small tree. It has smooth, black branches. Its petioles are about 5 millimeters long. Its olive-colored, smooth, oblong, papery leaves are 11-17 by 1.7-2.8 centimeters and have minute spots. The leaves have a pointed base, come to a short blunt point at their tips and have slightly rolled margins. The leaves have 10-12 lateral veins emanating from either side of the midrib. Its solitary flowers are in axillary positions on 1.2 millimeter long pedicels. The pedicels are subtended by 3 bracts that are 1-1.5 millimeters long and come to a point at their tips. Its 3 smooth, leathery, oval sepals are 9 by 4 millimeters and come to a point at their tips. Its flowers have 6 petals in two rows of 3. The outer, slender, lance-shaped petals are 1.8 centimeters long and come to a point at their tips. The inner, oval to triangular petals are 1 centimeter long and come to a shallow point at their tips. The flowers have numerous stamen about 1.5 millimeters long and numerous carpels that are covered in small, brown, matted hairs. [3]
Reproductive biology
The pollen of G. chartaceus is shed as permanent tetrads.[4]
References
- ↑ "Goniothalamus chartaceus H.L.Li". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved January 17, 2019.
- ↑ Stearn, William (2004). Botanical Latin. Portland, Ore. Newton Abbot: Timber Press David & Charles. ISBN 9780881926279.
- 1 2 Li, Hui-Lin (1943). "Notes on the Flora of Indo-China". Journal of the Arnold Arboretum. 24 (3): 362–374. JSTOR 43781090.
- ↑ Walker, James W. (1971). "Pollen Morphology, Phytogeography, and Phylogeny of the Annonaceae". Contributions from the Gray Herbarium of Harvard University. 202: 1–130. JSTOR 41764703.