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Bartholomew's Cobble
Bartholomew's Cobble is a National Natural Landmark, open space preserve, agricultural preserve, and bio-reserve located in southwest Massachusetts in the village of Ashley Falls abutting Canaan, Connecticut. The preserve contains more than 800 plant species, including North America's greatest diversity of ferns and the greatest overall biodiversity in Berkshire County, Massachusetts; it also contains Massachusetts' highest populations of ground nesting bobolinks.''Bartholomew's Cobble'' Brochure, 2002 edition. The Trustees of Reservations. It was declared a National Natural Landmark in October 1971. The preserve includes two rocky knolls for which the property is named (the Cobbles), as well as floodplain along the Konkapot and Housatonic Rivers, working hayfields and pastures, meadows, and Hurlburt's Hill, an open hilltop with a panoramic view of The Berkshires, the Taconic Mountains, and the Housatonic River Valley. The property has been owned and managed by the non-profit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Trustees Of Reservations
The Trustees of Reservations is a non-profit land conservation and historic preservation organization dedicated to preserving natural and historical places in the Commonwealth of Massachusetts. It is the oldest land conservation nonprofit organization of its kind in the world and has 140,000 dues-paying members . In addition to land stewardship, the organization is also active in conservation partnerships, community supported agriculture (CSA), environmental and conservation education, community preservation and development, and green building. The Trustees of Reservations own title to 120 properties on in Massachusetts, all of which are open to the public; it maintains conservation restrictions on over 200 additional properties. Properties include historic mansions, estates, and gardens; woodland preserves; waterfalls; mountain peaks; wetlands and riverways; coastal bluffs, beaches, and barrier islands; farmland and CSA projects; and archaeological sites. Main offices of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartzite
Quartzite is a hard, non- foliated metamorphic rock which was originally pure quartz sandstone.Essentials of Geology, 3rd Edition, Stephen Marshak, p 182 Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts. Pure quartzite is usually white to grey, though quartzites often occur in various shades of pink and red due to varying amounts of hematite. Other colors, such as yellow, green, blue and orange, are due to other minerals. The term ''quartzite'' is also sometimes used for very hard but unmetamorphosed sandstones that are composed of quartz grains thoroughly cemented with additional quartz. Such sedimentary rock has come to be described as orthoquartzite to distinguish it from metamorphic quartzite, which is sometimes called metaquartzite to emphasize its metamorphic origins. Quartzite is very resistant to chemical weathering and often forms ridges and resistant hilltops. The nearly pure silica conte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dryopteris Intermedia
''Dryopteris intermedia'', the intermediate wood fern or evergreen wood fern, is a perennial, evergreen wood fern native to eastern North America. It is a diploid species, and is the parent of several species of hybrid origin, including ''Dryopteris carthusiana''. Other common names for this species include intermediate shield fern, fancy wood fern, fancy fern, glandular wood fern, American shield fern and common wood fern. This fern is often confused with several other wood fern species, including ''D. carthusiana'', '' D. campyloptera'', and '' D. expansa''. It especially extensively shares the range of ''D. carthusiana'', but the two may be distinguished by the innermost pinnule on the bottom side of the bottom pinna: this pinnule is longer than the adjacent pinnules in ''D. carthusiana'', but shorter or even in ''D. intermedia''. Description ''Dryopteris intermedia'' is a perennial fern that grows to a size of about tall and wide. At its base, it consists of an undergroun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matteuccia Struthiopteris
''Matteuccia'' is a genus of ferns with one species: ''Matteuccia struthiopteris'' (common names ostrich fern, fiddlehead fern, or shuttlecock fern). The species epithet ''struthiopteris'' comes from Ancient Greek words () "ostrich" and () "fern". Description The fronds are dimorphic, with the deciduous green sterile fronds being almost vertical, tall and broad, long-tapering to the base but short-tapering to the tip, so that they resemble ostrich plumes, hence the name. The fertile fronds are shorter, long, brown when ripe, with highly modified and constricted leaf tissue curled over the sporangia; they develop in autumn, persist erect over the winter and release the spores in early spring. Along with ''Dryopteris goldieana'', it is one of the largest species of fern in eastern North America. Classification ''Matteuccia struthiopteris'' is the only species in the genus ''Matteuccia''. Some sources include two Asian species, ''M. orientalis'' and ''M. intermedia'', but molec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polypodium
''Polypodium'' is a genus of ferns in the family Polypodiaceae, subfamily Polypodioideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). The genus is widely distributed throughout the world, with the highest species diversity in the tropics. The name is derived from Ancient Greek ''poly'' (πολύ) "many" + ''podion'' (πόδιον) "little foot", on account of the foot-like appearance of the rhizome and its branches. They are commonly called polypodies or rockcap ferns, but for many species unique vernacular names exist. They are terrestrial or epiphytic ferns, with a creeping, densely hairy or scaly rhizome bearing fronds at intervals along its length. The species differ in size and general appearance and in the character of the fronds, which are evergreen, persisting for 1–2 years, pinnate or pinnatifid (rarely simple entire), and from 10–80 cm or more long. The sori or groups of spore-cases (sporangia) are borne on the back of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dryopteris Marginalis
''Dryopteris marginalis'', vernacularly known as the marginal shield fern or marginal wood fern, is a perennial species of fern found in damp shady areas throughout eastern North America, from Texas to Minnesota and Newfoundland. It favors moderately acid to circumneutral soils in cooler areas but is fairly drought-resistant once established. In the warmer parts of its range, it is most likely to be found on north-facing non-calcareous rock faces. It is common in many altitudes throughout its range, from high ledges to rocky slopes and stream banks. Marginal wood fern's name derives from the fact that the sori are located on the margins, or edges of the leaflets. Description ''Dryopteris marginalis'' is an evergreen fern throughout its range, along with Christmas fern (''Polystichum acrostichoides'') it is one of the few evergreen ferns. Marginal wood fern grows from a clump with a prominent central rootstock, this rootstock may be exposed and give this fern the appearance of be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystopteris Bulbifera
''Cystopteris bulbifera'', with the common name bulblet fern, bulblet bladderfern, or bulblet fragile fern is a fern in the family Cystopteridaceae. Distribution The fern is native to eastern Canada, the Midwestern and Eastern United States, and two disjunct populations in the Southwestern United States. It is found only on calcareous substrates such as limestone. It commonly festoons limestone cave openings. While most commonly found on vertical rock faces, it also grows in rocky scree. Description ''Cystopteris bulbifera'' is a low-growing rock fern with creeping stems and narrow elongate deltate fronds which grow to 75 cm (30 in). ''C. bulbifera'' is unusual among ferns in producing bulblets along the bottom of the fronds. This is one of the easiest ''Cystopteris'' species to identify. Hybrids This species is known to hybridize with ''Cystopteris fragilis'', ''Cystopteris protrusa'', ''Cystopteris reevesiana'', and ''Cystopteris tenuis''. Hybrids with ''C. fragil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adiantum Pedatum
''Adiantum pedatum'', the northern maidenhair fern or five-fingered fern, is a species of fern in the family Pteridaceae, native to moist forests in eastern North America. Like other ferns in the genus, the name maidenhair refers to the slender, shining black stipes. Description ''A. pedatum'' grows tall, and is deciduous. Taxonomy ''Adiantum pedatum'' was described by Linnaeus in ''Species Plantarum'' in 1753 (the official starting point of modern botanical nomenclature). He referred to earlier descriptions, all based on material from eastern North America. Linnaeus' own herbarium contains one specimen, collected by Pehr Kalm. Specimens collected in Unalaska and Kodiak Island by Chamisso and Langsdorf were referred to as ''Adiantum boreale'' by Presl in 1836, although he did not provide a species description to accompany the name. Ruprecht, in 1845, called the Alaskan material ''A. pedatum'' var. ''aleuticum'', and created var. ''kamtschaticum'' for mater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asplenium Montanum
''Asplenium montanum'', commonly known as the mountain spleenwort, is a small fern endemic to the eastern United States. It is found primarily in the Appalachian Mountains from Vermont to Alabama, with a few isolated populations in the Ozarks and in the Ohio Valley. It grows in small crevices in sandstone cliffs with highly acid soil, where it is usually the only vascular plant occupying that ecological niche. It can be recognized by its tufts of dark blue-green, highly divided leaves. The species was first described in 1810 by the botanist Carl Ludwig Willdenow. No subspecies have been described, although a discolored and highly dissected form was reported from the Shawangunk Mountains in 1974. ''Asplenium montanum'' is a diploid member of the "Appalachian ''Asplenium'' complex," a group of spleenwort species and hybrids which have formed by reticulate evolution. Members of the complex descended from ''A. montanum'' are among the few other vascular plants that can tol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asplenium Trichomanes
''Asplenium trichomanes'', the maidenhair spleenwort, is a small fern in the spleenwort genus ''Asplenium''. It is a widespread and common species, occurring almost worldwide in a variety of rocky habitats. It is a variable fern with several subspecies. The binomial nomenclature, specific epithet ''trichomanes'' refers to a Greek word for fern. Description ''Asplenium trichomanes'' grows 10 to 30 cm tall forming tufts arising from a short, scaly rhizome. The scales are dark. The evergreen fronds are long and narrow, gradually tapering towards the tip. They are simply divided into small, yellow-green to dark-green, roundish Frond, pinnae. The stipe (botany), stipe and rachis of the frond are dark all along their length. The fronds can reach 40 cm in length but are more commonly 8–20 cm. The Sorus, indusia are linear to oval, straight, and attached to the upper-side of the fertile vein. There are (2) 4 to 8 sori per pinna and each are 1 to 3.5 mm long. Diplo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asplenium Rhizophyllum
''Asplenium rhizophyllum'', the (American) walking fern, is a frequently-occurring fern native to North America. It is a close relative of '' Asplenium ruprechtii'' (syn: ''Camptosorus sibiricus'') which is found in East Asia and also goes by the common name of "walking fern". Description ''Asplenium rhizophyllum'' is a small fern whose undivided, evergreen leaves and long, narrow leaf tips, sometimes curving back and rooting, give it a highly distinctive appearance. It grows in tufts, often surrounded by child plants formed from the leaf tips. The leaves of younger plants tend to lie flat to the ground, while older plants have leaves more erect or arching. Roots and rhizomes It does not spread and form new plants via the roots. Its rhizomes (underground stems) are upright or nearly so, short, about in diameter, and generally unbranched. They bear dark brown or blackish, narrowly triangular or lance-shaped scales which are strongly clathrate (bearing a lattice-like pattern). The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcareous
Calcareous () is an adjective meaning "mostly or partly composed of calcium carbonate", in other words, containing lime or being chalky. The term is used in a wide variety of scientific disciplines. In zoology ''Calcareous'' is used as an adjectival term applied to anatomical structures which are made primarily of calcium carbonate, in animals such as gastropods, i.e., snails, specifically about such structures as the operculum, the clausilium, and the love dart. The term also applies to the calcium carbonate tests of often more or less microscopic Foraminifera. Not all tests are calcareous; diatoms and radiolaria have siliceous tests. The molluscs are calcareous, as are calcareous sponges ( Porifera), that have spicules which are made of calcium carbonate. In botany ''Calcareous grassland'' is a form of grassland characteristic of soils containing much calcium carbonate from underlying chalk or limestone rock. In medicine The term is used in pathology, for example i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
