Difference between revisions of "Micropus californicus"

Fischer & C. A. Meyer

Index Seminum (St. Petersburg) 2: 42. 1836.

Common names: Slender cottonseed Q-tips
Synonyms: Bombycilaena californica (Fischer & C. A. Meyer) Holub
Treatment appears in FNA Volume 19. Treatment on page 455. Mentioned on page 454, 456.
FNA>Volume Importer
FNA>Volume Importer
Line 12: Line 12:
 
|name=Bombycilaena californica
 
|name=Bombycilaena californica
 
|authority=(Fischer & C. A. Meyer) Holub
 
|authority=(Fischer & C. A. Meyer) Holub
 +
|rank=species
 
}}
 
}}
 
|hierarchy=Asteraceae;Asteraceae tribe Gnaphalieae;Micropus;Micropus californicus
 
|hierarchy=Asteraceae;Asteraceae tribe Gnaphalieae;Micropus;Micropus californicus
Line 26: Line 27:
 
|discussion=<p>Varieties 2 (2 in the flora).</p><!--
 
|discussion=<p>Varieties 2 (2 in the flora).</p><!--
 
--><p>Though common and often found on recent disturbances within its range, <i>Micropus californicus</i> does not appear to be particularly invasive or weedy. The mature pistillate paleae, with roughly the profile of a harp or of an inverted lower-case letter “q,” are distinctive. That shape and the accompanying dense, cottony indument of the common variety explain the vernacular names. By contrast, pistillate paleae of <i>M. amphibolus</i> have roughly the profile of a human head wearing a billed cap.</p><!--
 
--><p>Though common and often found on recent disturbances within its range, <i>Micropus californicus</i> does not appear to be particularly invasive or weedy. The mature pistillate paleae, with roughly the profile of a harp or of an inverted lower-case letter “q,” are distinctive. That shape and the accompanying dense, cottony indument of the common variety explain the vernacular names. By contrast, pistillate paleae of <i>M. amphibolus</i> have roughly the profile of a human head wearing a billed cap.</p><!--
--><p>Within the more limited range of <i></i></i>var.<i><i> subvestitus</i>, the two varieties are broadly sympatric, usually in separate populations, occasionally in mixed populations that sometimes include intermediate plants.</p>
+
--><p>Within the more limited range of <i></i>var.<i> subvestitus</i>, the two varieties are broadly sympatric, usually in separate populations, occasionally in mixed populations that sometimes include intermediate plants.</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
Line 49: Line 50:
 
-->{{#Taxon:
 
-->{{#Taxon:
 
name=Micropus californicus
 
name=Micropus californicus
|author=
 
 
|authority=Fischer & C. A. Meyer
 
|authority=Fischer & C. A. Meyer
 
|rank=species
 
|rank=species
Line 61: Line 61:
 
|publication year=1836
 
|publication year=1836
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V19_755.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V19_755.xml
 
|tribe=Asteraceae tribe Gnaphalieae
 
|tribe=Asteraceae tribe Gnaphalieae
 
|genus=Micropus
 
|genus=Micropus

Revision as of 20:21, 16 December 2019

Plants 1–50 cm. Heads depressed-spheric, 2–4 × 3–6 mm. Receptacles depressed-spheric, mostly 0.3–0.6 mm, heights 0.5–0.8 times diams. Pistillate paleae 4–7(–8) in 1 series, longest 2–4 mm; wings obscure, withering, lateral, ± erect, narrowly oblanceolate, involute; bodies galeate, cartilaginous to bony throughout, sericeous to lanuginose. Staminate paleae 0. Staminate corollas 1–2 mm, lobes usually 5. Cypselae 1.4–2.6 mm, corolla scars ± median; pappi: staminate 0 or of 1, ± smooth bristle 0.9–1.5 mm.

Discussion

Varieties 2 (2 in the flora).

Though common and often found on recent disturbances within its range, Micropus californicus does not appear to be particularly invasive or weedy. The mature pistillate paleae, with roughly the profile of a harp or of an inverted lower-case letter “q,” are distinctive. That shape and the accompanying dense, cottony indument of the common variety explain the vernacular names. By contrast, pistillate paleae of M. amphibolus have roughly the profile of a human head wearing a billed cap.

Within the more limited range of var. subvestitus, the two varieties are broadly sympatric, usually in separate populations, occasionally in mixed populations that sometimes include intermediate plants.

Selected References

None.

Key

1 Pistillate paleae densely and loosely lanuginose, longest usually 3–4 mm Micropus californicus var. californicus
1 Pistillate paleae thinly sericeous-lanuginose, longest usually 2–3 mm Micropus californicus var. subvestitus