Difference between revisions of "Dicranostegia"
Proc. Acad. Nat. Sci. Philadelphia 99: 189. 1947.
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|name=Cordylanthus | |name=Cordylanthus | ||
|authority=Nuttall ex Bentham [unranked] Dicranostegia A. Gray | |authority=Nuttall ex Bentham [unranked] Dicranostegia A. Gray | ||
| + | |rank=genus | ||
|publication_title=Proc. Amer. Acad. Arts | |publication_title=Proc. Amer. Acad. Arts | ||
|publication_place=19: 95. 1883 | |publication_place=19: 95. 1883 | ||
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--><p>Like <i>Chloropyron</i> and <i>Cordylanthus</i>, <i>Dicranostegia</i> has closed, club-shaped flowers with a spathelike calyx. Flowers are subtended by a single, elongate bracteole and pinnate bracts. <i>Dicranostegia</i> differs in having pinnately lobed leaves, deeply two-parted calyces that are about half as long as the corollas, and stamens with pollen sacs held apart on relatively short connectives.</p> | --><p>Like <i>Chloropyron</i> and <i>Cordylanthus</i>, <i>Dicranostegia</i> has closed, club-shaped flowers with a spathelike calyx. Flowers are subtended by a single, elongate bracteole and pinnate bracts. <i>Dicranostegia</i> differs in having pinnately lobed leaves, deeply two-parted calyces that are about half as long as the corollas, and stamens with pollen sacs held apart on relatively short connectives.</p> | ||
|tables= | |tables= | ||
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|basionyms=Cordylanthus | |basionyms=Cordylanthus | ||
|family=Orobanchaceae | |family=Orobanchaceae | ||
| + | |illustrator=John Myers | ||
| + | |illustration copyright=Flora of North America Association | ||
|distribution=Calif.;nw Mexico. | |distribution=Calif.;nw Mexico. | ||
| − | |reference= | + | |reference=None |
|publication title=Proc. Acad. Nat. Sci. Philadelphia | |publication title=Proc. Acad. Nat. Sci. Philadelphia | ||
|publication year=1947 | |publication year=1947 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V17/V17_1230.xml |
|genus=Dicranostegia | |genus=Dicranostegia | ||
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-->[[Category:Treatment]][[Category:Orobanchaceae]] | -->[[Category:Treatment]][[Category:Orobanchaceae]] | ||
Revision as of 19:06, 16 December 2019
Herbs, annual; hemiparasitic. Stems erect or ascending, rarely prostrate, not fleshy, pubescent, hirsute, or glabrous. Leaves cauline, alternate; petiole absent; blade not fleshy, not leathery, margins pinnately 8–11-lobed. Inflorescences terminal, spikes; bracts present. Pedicels absent; bracteoles absent. Flowers: sepals 2, calyx bilaterally symmetric, spathelike, lobes triangular; petals 5, corolla white to yellow, marked with purple, strongly bilabiate, club-shaped, often gibbous at base of lobes, abaxial lobes 3, adaxial lobes 2, adaxial lip galeate; stamens 2, filaments glabrous or proximally pubescent, pollen sacs separate, connective elongate; staminodes 2, filiform; ovary 2-locular, placentation axile; stigma not expanded. Capsules: dehiscence loculicidal. Seeds 5–20, brown, ovoid, wings absent. x = 8.
Distribution
Calif., nw Mexico.
Discussion
Species 1.
Dicranostegia is sometimes classified as Cordylanthus subg. Dicranostegia (A. Gray) T. I. Chuang & Heckard. D. C. Tank et al. (2009) have shown that Dicranostegia is closely related to Chloropyron and that both genera form a clade that is sister to Castilleja and Triphysaria.
Like Chloropyron and Cordylanthus, Dicranostegia has closed, club-shaped flowers with a spathelike calyx. Flowers are subtended by a single, elongate bracteole and pinnate bracts. Dicranostegia differs in having pinnately lobed leaves, deeply two-parted calyces that are about half as long as the corollas, and stamens with pollen sacs held apart on relatively short connectives.
Selected References
None.