Frailea Britton & Rose (1922: 208)
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publication ID |
https://doi.org/ 10.11646/phytotaxa.542.2.3 |
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DOI |
https://doi.org/10.5281/zenodo.6415639 |
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persistent identifier |
https://treatment.plazi.org/id/916987BD-FF99-FFF7-A3E3-BBE4FD1CF31B |
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treatment provided by |
Plazi |
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scientific name |
Frailea Britton & Rose (1922: 208) |
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3. Frailea Britton & Rose (1922: 208) View in CoL
Type (designated by Britton & Rose 1922: 210):— Frailea cataphracta Britton & Rose.
Species richness:— Frailea comprises 19 species according to Gerloff (2001). Twelve are endemic, recognized only for Rio Grande do Sul State (Pontes et al. 2018).
General distribution:— Frailea has a restricted geographical distribution to southern Brazil, Paraguay, Uruguay, southeastern Bolivia, and northeast Argentina.
Distribution in Santa Maria river basin:— In SMRB occur nine species, Frailea albifusca , ( Fig. 2C View FIGURE 2 and Fig. 2F View FIGURE 2 ), F. castanea Backeberg (1936: 415) ( Fig. 2D View FIGURE 2 ), F. lepida Buining & Brederoo (1973: 106) , ( Fig. 2E View FIGURE 2 ), F. mammifera , ( Fig. 2G View FIGURE 2 ), F. pumila ( Lemaire 1838: 21) Britton & Rose (1922: 209) ( Fig. 2H View FIGURE 2 ), F. pygmaea ( Spegazzini 1905: 497) Britton & Rose (1922: 210) ( Fig. 2I View FIGURE 2 ), F. erythracantha R.Pontes, A.S.Oliveira & Deble (2018: 202) ( Fig. 2J View FIGURE 2 ), in the study area, these species usually grow on rocky outcrops.
Morphologic notes:— They are tiny plants less than 4 cm in diameter, sometimes solitary, globular to cylindrical. Undeveloped ribs and very small straight or curved thorns. Flowers very ephemeral, l cleistogamous or casmogamous, yellow or cream-yellow, dense woolly floral bracts and many bristles. Dried fruit with many seeds up to 1.5 cm long. They usually bloom in summer and fruit soon after.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.