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Project Name Data (Last Modified On 5/22/2013)

Flora Data (Last Modified On 5/22/2013)
Genus Schlegelia Miq.
PlaceOfPublication Bot. Zeitung (Berlin) 2: 785. 1844.
Note TYPE: S. lilacina Miq. = S. violacea (Aubl.) Griseb.
Synonym Dermatocalyx Oerst., Vidensk. Meddel. Dansk Naturhist. Foren. Kjbenhavn 1855: 29. 1856. TYPE: D. parviflorus Oerst. = Schlegelia parviflora (Oerst.) Monachino.
Description Vines or scandent shrubs, sometimes epiphytic; stems without anomalous vasculature; branchlets more or less terete without interpetiolar glandular fields; pseudostipules small, blunt-conical or subulate, more or less appressed against the branchlet. Leaves simple, opposite, often strikingly coriaceous. Inflores- cence an axillary raceme or a terminal or axillary (usually narrow), panicle, often conspicuously bracteate. Flowers with the calyx cupular, truncate or irregularly lobed; corolla white to pink, purple or red (or ?yellowish), tubular- campanulate to narrowly tubular, often short, more or less glabrous outside, conspicuously glandular lepidote on lobes inside; anthers glabrous, the thecae relatively short and thick, divaricate; pollen grains 3-colpate, the exine finely reticulate; ovary globose, bilocular with a single central placenta in each locule, the ovules multiseriate on each placenta, sometimes apically unilocular, the ovules then parietal on 2 bifid placentae fused lower in ovary. Fruit usually a spherical berry with a thin crustaceous pericarp, the lower part sheathed by the persistent calyx, more or less ellipsoid and hard-shelled in some species; seeds small, angu- lar, wingless, surrounded by pulp.
Habit Vines or scandent shrubs
Distribution About a dozen species of tropical America ranging from Guatemala and the West Indies to Brazil.
Note Schlegelia is a confusing genus intermediate between the Bignoniaceae and Scrophulariaceae. I have accepted its traditional placement in the Bignoniaceae with some reservation. Williams (1970) recently described Gibsoniothamnus, a new genus of Scrophulariaceae which he interprets correctly as an additional link between that family and Schlegelia, and also proposed transfer of Schlegelia itself to Scrophulariaceae. The discovery of S. dressleri, the most bignoniaceous- looking species of Schlegelia yet described, provides an additional link between this genus and Bignoniaceae. Schlegelia species fall into two groups which may prove to be separate genera, one in the Bignoniaceae and one in the Scro- phulariaceae. One group, closely allied with Bignoniaceae, has relatively large flowers and, in the two species where fruit is known, a hard-shelled, Crescentia- like fruit. The second group, more closely related to Scrophulariaceae, has species with small flowers and baccate fruits with only a crustaceous pericarp. One other species may occur in Panama. Schlegelia darienensis Seem. has been collected in the adjacent Choco of Colombia. It is recognized by its terminal inflorescence with leaf-like bracts.
Reference Williams, L. 0. An overlooked genus of the Scrophulariaceae. Fieldiana, Bot. 32: 211-214. 1970.
Key a. Corolla large (more than 3.9 cm long and 1.1 cm wide at the mouth of the tube), tubular-campanulate; fruit ca. 4 cm in diameter (where known). b. Inflorescence a densely contracted, many-flowered raceme subtended by a con- spicuous fascicle of basal bracts; leaves coriaceous, somewhat bullate, more than 30 cm long ...... 1. S. dressleri bb. Inflorescence a few-flowered axillary fascicle without a conspicuous fascicle of basal bracts; leaves chartaceous to subcoriaceous, not bullate, less than 12 cm long ...... 3. S. nricaraguensis aa. Corolla small (less than 2.5 cm long and 0.5 cm wide at the mouth of the tube), tubular or shortly campanulate; fruit less than 1.5 cm in diameter. c. Corolla narrowly tubular with minute (1-2 mm long) non-reflexed lobes, more than 2 cm long; inflorescence a congested, densely branched, contracted, fastigiate pani- cle, each branchlet short, thick, and conspicuously jointed ...... 5. S. sulfurea cc. Corolla shortly tubular with larger (3-6 mmn long) reflexed lobes, less than 1.3 cm long; inflorescence less-branched, not fastigiate, its branchlets not conspicuously thickened nor jointed. d. Inflorescence an open, unbranched raceme, sometimes a short, 3-flowered side branch replacing the lowest flower on each side; leaves drying a dark grayish brown ...... 2. S. fuscata dd. Inflorescence a more or less contracted panicle, sometimes almost fasciculate; most leaves drying olive to olive brown ...... 4. S. parviflora
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