Desmos chryseus

• Description
• Taxonomy
• Similar Species
• Bibliography
• More Info
• Notes

Description

Family Annonaceae

Trees , shrubs , rarely woody vines , deciduous or evergreen , with aromatic bark , leaves, and flowers. Pith septate to diaphragmed . Leaves alternate, simple , without stipules, petiolate . Leaf blade pinnately veined, unlobed, margins entire . Inflorescences axillary to leaf scars on old wood or to leaves on new shoots , solitary flowers or few-flowered fascicles, pedunculate ; bracts or bracteoles present or absent. Flowers bisexual , rarely unisexual ; receptacle becoming enlarged, elevated or flat; perianth hypogynous, segments valvate or imbricate; sepals persistent , (2-) 3(-4), distinct or basally connate ; petals either 6 in 2 unequal whorls of 3 with petals of outer whorl larger, petals of inner whorl fleshier than the outer, often with corrugate nectary zone, or petals 6-12(-15), nearly equal or unequal, veins impressed on inner face ; stamens 10-20 or very numerous , hypogynous, spirally arranged , forming ball or flat-topped mass; filament short, stout; anther linear to oblong-linear, extrorse , longitudinally dehiscent ; connective apically elongate , connivent; pistils 1-many, superior, 1-carpellate, 1-locular, distinct or connate to various degrees with at least stigmas distinct; placentation marginal , placenta 1; ovules 1-many per pistil; style short, thick; stigma terminal . Fruits berries , distinct, 1-8(-12) per flower, or coalescent , forming syncarps, 1 per flower. Seeds 1-many per pistil, arillate ; endosperm ruminate , oily.

Genera ca. 128, species ca. 2300 (3 genera, 12 sp: mostly circumtropical .

The family has particular importance in the tropics because of the edible syncarps of some species of Annona ; in the eastern United States the fruit of Asimina triloba (pawpaw) was once much gathered and appreciated. Programs in breeding from selected stock of Asimina have been undertaken (G. A. Zimmerman 1941).

Currently, the Pawpaw Foundation is intensively researching means to develop commercially marketable fruits. Recent studies of the chemical properties of Asimina reveal its pesticidal possibilities, and its potential as an anticancer agent (E. M. Norman, pers. comm. ) The warm-climate genera Cananga, Rollinia, and Artabotrys have been used as ornamentals .Robert Kral "Annonaceae". in Flora of North America Vol. 3. Oxford University Press. Online at EFloras.org.

Taxonomy

Unambiguous Synonyms

1. Desmos chryseus (Miq.) Merr.
2. Monoon chryseum Miq.
3. Unona chrysea (Miq.) Boerl.

Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: Annonaceae WorkingGroup, 2006

Similar Species

Members of the genus Desmos

There are approximately 51 species in this genus:

D. cambodicus · D. caudatus · D. chinensis (Dwarf Ylang Ylang Shrub) · D. chinensis var. brevifolius · D. chinensis var. laevigatus · D. chinensis var. lawii · D. chinensis var. macropetalus · D. chinensis var. pubescens · D. chryseus · D. cochinchinensis (Dwarf Ylang Ylang Shrub) · D. cochinchinensis var. fulvescells · D. cochinchinensis var. fulvescens · D. conchyliatus · D. costatus · D. crinitus · D. desmanthus · D. dinhensis · D. dinnensis · D. dubius · D. dumosus · D. elegans · D. elmeri · D. evrardii · D. goezeanus · D. grandifolius · D. jambosifolius · D. lomentaceus · D. macrocalyx · D. macrocarpus · D. pedunculosus · D. pedunculosus var. lonkinensis · D. pedunculosus var. tonkinensis · D. polycarpus · D. praecox · D. purpuratus · D. robinsonii · D. rostrata · D. rostratus · D. saccopetaloides · D. sessiliflorus · D. sootepense · D. sootepensis · D. stenopetalus · D. subbiglandulosus · D. teysmannii · D. verrucosus · D. viridiflorus · D. wardianus · D. wrayi · D. yunnanensis · D. zeylanicus

Bibliography

• Fries, R. E. 1939. Revision der Arten einiger Annonaceen-Gattungen. Acta Horti Berg. 12(3): 289-577.
• Fries, R. E. 1931. Revision der Arten einiger Annonaceen-Gattungen. Acta Horti Berg. 10: 1-341.
• Fries, R. E. 1934. Revision der Arten einiger Annonaceen-Gattungen. Acta Horti Berg. 12(1): 1-220.
• Hutchinson, J. 1923. Contributions toward a phylogenetic classification of flowering plants. II. The genera of Annonaceae. Bull. Misc. Inform. Kew: 241-261.
• Kral, R. 1960. A revision of Asimina and Deeringothamnus (Annonaceae). Brittonia 12(4): 233-278.
• Rusby, H. H. 1935. The custard-apple family in Florida. J. New York Bot. Gard. 36: 233-239.

More Info

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Notes

Contributors

• Bisby, F.A., Y.R. Roskov, M.A. Ruggiero, T.M. Orrell, L.E. Paglinawan, P.W. Brewer, N. Bailly, J. van Hertum, eds (2007). Species 2000 & ITIS Catalogue of Life: 2007 Annual Checklist. Species 2000: Reading, U.K.
• Brands, S.J. (comp.) 1989-2007. Systema Naturae 2000. The Taxonomicon. Universal Taxonomic Services, Amsterdam, The Netherlands. Accessed March 23, 2007.
• MBLWHOI Library: Universal Biological Index and Organizer. uBio.org accessed July 22, 2008.
• The International Plant Names Index. Accessed Jan 19, 2007.
• World Species List of Annonaceae, 1.1, 2006.

Identifiers

• Biodiversity Heritage Library NamebankID: 8384765
• Global Biodiversity Information Facility Taxonkey: 2300458
• Globally Unique Identifier: urn:lsid:ipni.org:names:72772-1
• International Plant Names Index (IPNI) ID: 72772-1
• Zipcode Zoo Species Identifier: 1185522

Footnotes

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