Flora of North America species comparison

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Maurandella

maurandella, snapdragon vine
Habit Herbs, perennial; caudex woody.
Stems

climbing, glabrous.
Leaves

cauline, alternate;

petiole twining;

blade fleshy, not leathery, margins entire.
Inflorescences

axillary, flowers solitary;

bracts absent.
Pedicels

present;

bracteoles absent.
Flowers

bisexual;

sepals 5, distinct, lanceolate, calyx bilaterally symmetric, campanulate;

corolla blue to violet, pink, or red, bilaterally symmetric, bilabiate and personate, tubular, tube base not spurred or gibbous, lobes 5, abaxial 3, adaxial 2;

stamens 4, basally adnate to corolla, didynamous, filaments glandular-hairy;

staminode 1, filamentous;

ovary 2-locular, placentation axile;

stigma 2-lobed.
Fruits

capsules, dehiscence loculicidal.
Seeds

80–150, dark brown to black, ovoid to oblong-polygonal, wings absent.
x

= 12.

Maurandella
Distribution
from USDA
sw United States; sc United States; Mexico
[BONAP county map]
Discussion

Species 2 (1 in the flora).

Maurandella most commonly has been recognized as a genus segregated from Maurandya Ortega or as a section within Maurandya, based on distinctive characteristics: personate corolla, globular capsule, V-shaped septum, and marked asymmetry of the locules. The V-shaped septum results in unequal locule volumes, which is unique in Antirrhineae. Based on this unique combination of characteristics, Maurandella is recognized here as a genus distinct from Epixiphium and Maurandya.

Initial molecular phylogenetic studies indicated a sister group relationship between species of Maurandella and Maurandya (M. Ghebrehiwet et al. 2000); they lacked the taxon sampling needed to resolve relationships among closely related species in Epixiphium, Maurandella, and Maurandya (C. E. Freeman and R. Scogin 1999; P. Vargas et al. 2004). The more complete ITS sampling by M. Fernández-Mazuecos et al. (2013) placed both genera in the Cymbalaria clade, but not as sister taxa; Maurandya was sister to Lophospermum, whereas Maurandella was nested in a more basal position within a seven-taxon subclade comprising genera in subtribe Maurandyinae.

Maurandella hederifolia Rothmaler is known from northern Mexico.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 35. Author: Wayne J. Elisens.
Parent taxa Plantaginaceae
Subordinate taxa
M. antirrhiniflora
Synonyms Antirrhinum
Name authority (A. Gray) Rothmaler: Feddes Repert. Spec. Nov. Regni Veg. 52: 26. (1943)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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