Difference between revisions of "Penstemon sect. Chamaeleon"
Sida 2: 339. 1966.
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| − | --><span class="statement" id="st-undefined" data-properties=""><b>Herbs.</b> Stems retrorsely hairy or puberulent, sometimes glandular-pubescent distally or glabrescent, not glaucous. <b>Leaves</b> basal and cauline, basal usually absent at anthesis, opposite, leathery or not, glabrous, puberulent, or retrorsely hairy, not glaucous; basal and proximal cauline petiolate, sometimes short-petiolate or sessile (P. dasyphyllus); cauline sessile, sometimes short-petiolate (P. lanceolatus), blade lanceolate or linear, margins entire. <b>Thyrses</b> interrupted, ± secund to cylindric, axis glandular-pubescent or glabrous, cymes 1 or 2 per node; peduncles and pedicels ascending to erect. <b>Flowers</b>: calyx lobes: margins entire or erose (P. stenophyllus), herbaceous or narrowly scarious, sometimes broadly scarious (P. stenophyllus), glandular-pubescent or glabrous; corolla lavender to blue, violet, purple, red, or scarlet, bilaterally symmetric, bilabiate, not personate, ventricose or tubular-funnelform, glandular-pubescent externally, glabrous or glandular-pubescent internally abaxially, throat abruptly or gradually inflated, not constricted at orifice, rounded to 2-ridged abaxially; stamens included to exserted, filaments glabrous, pollen sacs parallel to divergent, navicular to slightly saccate, dehiscing completely or incompletely, distal 1/5 or less sometimes indehiscent, connective splitting, sides glabrous, sutures denticulate, teeth to 0.2–0.3 mm; staminode included or exserted, flattened distally, 0.3–2.6 mm diam., tip recurved, glabrous; style glabrous. <b>Capsules</b> glabrous. <b>Seeds</b> brown to dark brown, angled, 1.9–3.2 mm.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Herbs.</b> Stems retrorsely hairy or puberulent, sometimes glandular-pubescent distally or glabrescent, not glaucous. <b>Leaves</b> basal and cauline, basal usually absent at anthesis, opposite, leathery or not, glabrous, puberulent, or retrorsely hairy, not glaucous; basal and proximal cauline petiolate, sometimes short-petiolate or sessile (<i>P. dasyphyllus</i>); cauline sessile, sometimes short-petiolate (<i>P. lanceolatus</i>), blade lanceolate or linear, margins entire. <b>Thyrses</b> interrupted, ± secund to cylindric, axis glandular-pubescent or glabrous, cymes 1 or 2 per node; peduncles and pedicels ascending to erect. <b>Flowers</b>: calyx lobes: margins entire or erose (<i>P. stenophyllus</i>), herbaceous or narrowly scarious, sometimes broadly scarious (<i>P. stenophyllus</i>), glandular-pubescent or glabrous; corolla lavender to blue, violet, purple, red, or scarlet, bilaterally symmetric, bilabiate, not personate, ventricose or tubular-funnelform, glandular-pubescent externally, glabrous or glandular-pubescent internally abaxially, throat abruptly or gradually inflated, not constricted at orifice, rounded to 2-ridged abaxially; stamens included to exserted, filaments glabrous, pollen sacs parallel to divergent, navicular to slightly saccate, dehiscing completely or incompletely, distal 1/5 or less sometimes indehiscent, connective splitting, sides glabrous, sutures denticulate, teeth to 0.2–0.3 mm; staminode included or exserted, flattened distally, 0.3–2.6 mm diam., tip recurved, glabrous; style glabrous. <b>Capsules</b> glabrous. <b>Seeds</b> brown to dark brown, angled, 1.9–3.2 mm.</span><!-- |
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|distribution=sw United States;Mexico. | |distribution=sw United States;Mexico. | ||
|discussion=<p>Species 4 (3 in the flora).</p><!-- | |discussion=<p>Species 4 (3 in the flora).</p><!-- | ||
| − | --><p>Crosswhite circumscribed sect. Chamaeleon to include a group of southern species distinguished by incompletely dehiscent pollen sacs with prominently denticulate sutures. Penstemon punctatus Brandegee, a species not treated by Crosswhite, might belong here; the only specimens of that species seen were from Coahuila, Mexico.</p> | + | --><p>Crosswhite circumscribed sect. Chamaeleon to include a group of southern species distinguished by incompletely dehiscent pollen sacs with prominently denticulate sutures. <i>Penstemon</i> punctatus Brandegee, a species not treated by Crosswhite, might belong here; the only specimens of that species seen were from Coahuila, Mexico.</p> |
|tables= | |tables= | ||
|references={{Treatment/Reference | |references={{Treatment/Reference | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Penstemon sect. Chamaeleon | name=Penstemon sect. Chamaeleon | ||
| − | |||
|authority=Crosswhite | |authority=Crosswhite | ||
|rank=section | |rank=section | ||
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|publication year=1966 | |publication year=1966 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V17/V17_287.xml |
|genus=Penstemon | |genus=Penstemon | ||
|subgenus=Penstemon subg. Penstemon | |subgenus=Penstemon subg. Penstemon | ||
Latest revision as of 19:31, 5 November 2020
Herbs. Stems retrorsely hairy or puberulent, sometimes glandular-pubescent distally or glabrescent, not glaucous. Leaves basal and cauline, basal usually absent at anthesis, opposite, leathery or not, glabrous, puberulent, or retrorsely hairy, not glaucous; basal and proximal cauline petiolate, sometimes short-petiolate or sessile (P. dasyphyllus); cauline sessile, sometimes short-petiolate (P. lanceolatus), blade lanceolate or linear, margins entire. Thyrses interrupted, ± secund to cylindric, axis glandular-pubescent or glabrous, cymes 1 or 2 per node; peduncles and pedicels ascending to erect. Flowers: calyx lobes: margins entire or erose (P. stenophyllus), herbaceous or narrowly scarious, sometimes broadly scarious (P. stenophyllus), glandular-pubescent or glabrous; corolla lavender to blue, violet, purple, red, or scarlet, bilaterally symmetric, bilabiate, not personate, ventricose or tubular-funnelform, glandular-pubescent externally, glabrous or glandular-pubescent internally abaxially, throat abruptly or gradually inflated, not constricted at orifice, rounded to 2-ridged abaxially; stamens included to exserted, filaments glabrous, pollen sacs parallel to divergent, navicular to slightly saccate, dehiscing completely or incompletely, distal 1/5 or less sometimes indehiscent, connective splitting, sides glabrous, sutures denticulate, teeth to 0.2–0.3 mm; staminode included or exserted, flattened distally, 0.3–2.6 mm diam., tip recurved, glabrous; style glabrous. Capsules glabrous. Seeds brown to dark brown, angled, 1.9–3.2 mm.
Distribution
sw United States, Mexico.
Discussion
Species 4 (3 in the flora).
Crosswhite circumscribed sect. Chamaeleon to include a group of southern species distinguished by incompletely dehiscent pollen sacs with prominently denticulate sutures. Penstemon punctatus Brandegee, a species not treated by Crosswhite, might belong here; the only specimens of that species seen were from Coahuila, Mexico.
Selected References
Key
| 1 | Corollas scarlet to red, tubular-funnelform, glandular-pubescent internally abaxially. | Penstemon lanceolatus |
| 1 | Corollas violet to blue, lavender, or purple, ventricose, glabrous internally. | > 2 |
| 2 | Thyrse axes glandular-pubescent. | Penstemon dasyphyllus |
| 2 | Thyrse axes glabrous. | Penstemon stenophyllus |