Every, J.L.R. (2009). Neotropical Winteraceae.
Evergreen trees or shrubs, glabrous , commonly with suckers, fresh bark and leaves aromatic with a burning, pepper-like taste. Leaves alternate , spiral, commonly irregularly crowded, exstipulate , margins entire , simple , often coriaceous , glaucous -white below with wax plugging stomata , often finely pellucid -dotted, sometimes very strongly curved adaxially (supervolute), venation pinnate , brochidodromous , tertiaries reticulate (NB! there is considerable polymorphism and variation in both foliage and floral characters). Inflorescence terminal , intercalary or axillary , cymose, in umbellate clusters or solitary. Flowers bisexual , hypogynous, bracts or bracteoles caducous ; sepals 2-4(-6), connate in bud , forming a calyptra, rupturing early at anthesis, sometimes glandular ; petals (0-)2-many, in 1-3 whorls, outer members sometimes, nearly always free , imbricate ; stamens spirally arranged, 3-many, filaments stout, fleshy , anthers basifixed, opening by longitudinal slits; ovary superior , (1-)5-12-many, seemingly apocarpic but can become syncarpous, unilocular; style minute to absent, stigma bilobed (not decurrent ), one per carpel . Fruit a cluster of follicles or berries, indehiscent . Seed few to numerous, smooth to blistered, testa dark grey to black, hard, brittle, endosperm copious.
- General Description
Notes on delimitation
- Together with the Canellaceae in the order Canellales (APG 2, 2003).
- The Canellales are found in the Magnoliids and are most likely sister to the Piperales (APG 2, 2003).
- Molecular and floral ontogeny studies places Drimys J.R. Forst. & G. Forst. as sister to Tasmannia R.Br. ex DC. and not in the same genus split into two sections (Doust, 2004). Tasmannia is an Old World genus of c. 40 spp. with unisexual flowers.
- One: Drimys J.R.Forst. & G.Forst.
- Due to the basal position of Winteraceae in the angiosperm phylogenetic tree the flower morphology is variable and not as fixed as more recently evolved families.
- There is considerable polymorphism and variation in both foliage and floral characters. This instability can lead to difficulty in determining the species of the specimen.
- Drimys is endemic to the Americas.
Distribution in the Neotropics
- Winteraceae generally grow in moist montane tropical environments.
- From Veracruz in central-eastern Mexico, throughout the Neotropics to the southernmost point of South America.
- D. granatensis Mutis ex L.f. is found in cloud forests throughout the Neotropics at 3,000-3,500 m alt.
- D. roraimensis (A.C. Sm.) Ehrend & Gottsb. is found in the Venezuelan montane and cloud forests, dwarf forests, slopes of tepuis, along streams and in swamps, at 1,800-2,500 m alt.
- D. granandensis L. occurs from southern Mexico through to Peru and Chile.
- D. winteri J.R. Forst. & G. Forst. occurs in Argentina, Chile and Peru.
Other important characters
- Fresh material has a distinct smell with a burning, pepper-like taste.
- Transparentgland dots are regularly visible on the leaf blades.
- Partial inflorescence of 2-21, sweetly scented predominantly white flowers.
- Bracts and bracteoles are rapidly deciduous.
- Gynoecium can be apocarpic or fused in the middle and becoming syncarpous.
- Fruit in clusters of follicles or berries.
- Alternate, simple leaves arranged spirally and somewhat irregularly clustered.
- Leaf blade with secondary veins that do not extend to the leaf margin but link up with the neighbouring one.
- Underside of leaf waxy and seemingly white/blue in colour.
- During or after flowering the twig elongates monopodially from the apical bud of the inflorescence.
- Flowers bisexual with the sepals forming a cap-like structure which covers the stamens and carpels in bud.
- Stamens spirally arranged.
- Fruits indehiscent.
- 3 sepals.
- 5-12 petals.
- 6-numerous stamens fused into a tube.
- 2-6 connate carpels.
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First published in Intr. Nat. Syst. Bot. 26. 1830 [26 Sep 1830] (1830)
- APG IV (2016) http://dx.doi.org/10.1111/boj.12385
Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0
Milliken, W., Klitgard, B. and Baracat, A. (2009 onwards), Neotropikey - Interactive key and information resources for flowering plants of the Neotropics.