BackgroundA survey of the understory bryophytes in the Nectandra Cloud Forest Preserve yielded 1083 specimens distributed among 55 families, represented by 74 genera of mosses, 75 genera of liverworts and 3 of hornworts. We studied and analyzed the bryophytic distribution on six types of substrates: 1) corticolous, 2) epiphyllous, 3) saxicolous, 4) terricolous, 5) aquatic and 6) lignicolous. The richness and composition of bryophyte genera are compared to those of other previous bryophyte surveys from 4 other sites with different oceanic exposures, climatic and geographic conditions in Costa Rica.New informationThis is a report of the first extensive general survey of bryophytes at the Nectandra Reserve, a premontane cloud forest located on the Atlantic slope of Costa Rica, an area much less studied compared to the Monteverde cloud forest on the Pacific slope.
Carter Caves State Resort Park (CCSRP) is comprised of 800 ha in Carter County, Kentucky. A field-based inventory of the pteridophytes of the park was conducted from September 2005-October 2007. Additionally, pteridophyte collections at regional herbaria were examined for specimens from the park. These efforts yielded a pteridophyte flora of 46 species and one hybrid for CCSRP; this is 61% of Kentucky's known pteridophyte flora. Index of similarity values with other published floras ranged from 22.2% to 84.5%. CCSRP had over twice the predicted number (21) of pteridophyte species based on a species-area curve constructed with data from other regional floras.
Forty-one taxa of liverworts were collected during the Sixth Blomquist Bryological Foray held the 14 September 1991 at Bad Branch Nature Preserve, Letcher County, Kentucky. Thirteen additional species collected by one of us (ACR) during previous trips to the preserve are also included in the following list. Anastrophyllum michauxii, Leucolejeunea conchifolia, Marsupella paroica, Metzgeria leptoneura, Plagiochila caduciloba, and Porella japonica subsp. appalachiana are significant new additions to the hepatic flora of Kentucky, with each representing a new range extension into the Cumberland Mountain system. Plagiochila virginica and Radula mollis are also reported new to Kentucky.Bad Branch Nature Preserve is located on the southeast face of Pine Mountain. Pine Mountain was formed by an overthrust fault and is a long ridge, ca. 2800-3000 feet in elevation, that basically parallels the Kentucky-Virginia border. The strata of the mountain dip toward the southeast. Pine Mountain has a very steep northwest face which consists of the cut-off ends of strata and a more gentle southeast face whose slope often follows the dipping of the bedding planes. This tilting of the strata strongly influences the nature of the sandstone cliffs in the preserve. Bad Branch is a fast-flowing, perennial stream with a 65 foot waterfall in its lower gorge (elevation ca. 2120 ft.) The preserve also has smaller waterfalls, many cascades, and numerous sandstone cliffs with moist grottoes and overhangs.
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