Flora of North America species comparison

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Gambelia

Greenbright
Habit Shrubs.
Stems

pendent or erect, glabrous or glandular-hairy.
Leaves

persistent, cauline, whorled [opposite];

petiole present;

blade not fleshy, not leathery, margins entire, distal leaf blade not needlelike or scalelike.
Inflorescences

terminal [axillary], racemes;

bracts present.
Pedicels

present;

bracteoles absent.
Flowers

bisexual;

sepals 5, basally connate, calyx radially symmetric, campanulate, lobes lanceolate [ovate];

corolla red, bilaterally symmetric, bilabiate and personate [open-throated], tubular, tube base not spurred or gibbous, lobes 5, abaxial 3, adaxial 2;

stamens 4, basally adnate to corolla, didynamous, filaments basally hairy, distally glabrous;

staminode 0;

ovary 2-locular, placentation axile;

stigma 2-lobed.
Fruits

capsules, dehiscence loculicidal.
Seeds

40–80[–120], dark brown to black, ovoid [oblong], wings absent.
x

= 15.

Gambelia
Distribution
from FNA
CA; w Mexico
[BONAP county map]
Discussion

Species 4 (1 in the flora).

Gambelia is defined by its shrubby habit, whorled (rarely opposite) leaves, and red corollas. Generic delimitation has varied considerably with species placed in Gambelia (D. A. Sutton 1988; E. Fischer 2004) and Saccularia Kellogg (W. Rothmaler 1943) or combined with South American species in Galvezia Dombey ex Jussieu (P. A. Munz 1926). Most authors recognize Gambelia as exclusively North American and Galvezia as comprising species in South America and the Galapagos Islands (Sutton; Fischer). Gambelia speciosa was included in molecular phylogenetic analyses of Antirrhineae by M. Ghebrehiwet et al. (2000) and M. Fernández-Mazuecos et al. (2013). The latter investigation demonstrated strong support for recognition of a North American Gambelia nested in an Antirrhinum clade distinct from South American species of Galvezia nested within a Galvezia clade. The extent of isozyme, morphological, and molecular divergence (Sutton; W. J. Elisens and A. D. Nelson 1993; Ghebrehiwet et al.) among species in this clade is consistent with recognition of Gambelia for North American species and Galvezia for South American species.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 17, p. 21. Author: Wayne J. Elisens.
Parent taxa Plantaginaceae
Subordinate taxa
G. speciosa
Name authority Nuttall: Proc. Acad. Nat. Sci. Philadelphia 4: 7. (1848)
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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