December 2012 Number 1 - Utah Native Plant Society
December 2012 Number 1 - Utah Native Plant Society
December 2012 Number 1 - Utah Native Plant Society
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<strong>Utah</strong> <strong>Native</strong> <strong>Plant</strong> <strong>Society</strong><br />
Figure 3. Scatterplot of the 153 specimens Palantia PCoA using 21 variable, morphological characters. The first and<br />
second axes represent 33.5% of the variation. Taxa are labeled as: (circle), Astragalus lentiginosus var. palans including<br />
the Cameron, Arizona specimens; (caret), A. lentiginosus var. bryantii; (upward triangle), A. lentiginosus var.<br />
maricopae; (X), A. lentiginosus var. ursinus; (+), A. lentiginosus var. wilsonii including South Rim, Arizona specimens.<br />
Relevant specimens of these and other taxa (diamonds) are labeled with letters. Table one contains the legend<br />
of letter codes used for specific vouchers shown.<br />
Table 4. List of 12 morphological characters from<br />
the 43 specimen Astragalus lentiginosus var.<br />
mokiacensis PCoA. This analysis used a modified version<br />
of the data used in Alexander (2005). For a list of<br />
character states for character below, see Appendix 2.<br />
Characters were coded as multistate continuous variation<br />
(R), binary state (B), or multistate (M).<br />
1. Adaxial leaflet pubescence (leafad) M<br />
2. Abaxial leaflet pubescence (leafab) M<br />
3. Calyx tube length (calyxl) R<br />
4. Calyx teeth shape (calyxs) M<br />
5. Keel length (keell) R<br />
6. Wing color (wingc) M<br />
7. Pod length X width ratio (podr) R<br />
8. Pod pedicel orientation (podpo) M<br />
9. Pod shape, longitudinal section (podsl) M<br />
10. Pod shape, cross section (podsc) M<br />
11. Pod orientation on raceme (podro) M<br />
12. Pod stipe length (pods) R<br />
lentiginosus var. maricopae, A. lentiginosus var.<br />
mokiacensis, and A. lentiginosus var. ursinus, all with<br />
persistent pods (an otherwise dependable species-level<br />
character in Astragalus according to Barneby 1964),<br />
were confirmed to be closely related to varieties of A.<br />
lentiginosus with deciduous pods (A. lentiginosus var.<br />
palans and A. lentiginosus var. wilsonii). A haplotype<br />
network derived from an analysis of chloroplast microsatellites<br />
(Alexander & Liston, in prep) shows A. lentiginosus<br />
var. maricopae is neither highly genetically<br />
differentiated from A. lentiginosus var. palans, A. lentiginosus<br />
var. wilsonii, nor A. lentiginosus var. ursinus.<br />
Astragalus lentiginosus var. ursinus was found to be<br />
more genetically similar to the long distance disjunct, A.<br />
lentiginosus var. wilsonii, than to its geographically<br />
proximal relative, A. lentiginosus var. mokiacensis<br />
(Alexander 2008, Alexander & Liston, in prep).<br />
Though Astragalus lentiginosus var. maricopae is<br />
not highly genetically differentiated from its geographically<br />
nearest relative, A. lentiginosus var. wilsonii, it is<br />
distinct morphologically. The PCoA analysis shows that<br />
the specimens of A. lentiginosus var. maricopae form a<br />
morphologically distinct group away from A. lentiginosus<br />
var. mokiacensis, A. lentiginosus var. wilsonii, and<br />
A. lentiginosus var. ursinus. The distance is not farther<br />
than A. lentiginosus var. pseudiodanthus is from the lar-<br />
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