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Topic: Vernation

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	Vernation Info - Bored Net - Boredom (Site not responding. Last check: 2007-10-13)
		In plant anatomy, it is the arrangement of leaves in a bud.
		Circinate vernation is the name given to the manner in which new fern fronds emerge.
		As a new fern frond is formed, it is tightly curled so that the tender growing tip of the frond (and each subdivision of the frond) is protected within a coil.
	www.borednet.com /e/n/encyclopedia/v/ve/vernation.html (226 words)

	Circinate vernation
		Circinate vernation is the name for the way in which new fern fronds emerge.
		When a new fern frond is emerging, the frond is called a crozier (after the shepherd's crook) or fiddlehead (after the scrollwork at the top of a violin).
		This means that the tender growing tip of the frond is protected in the middle of the coil, while the lower parts of the frond are toughening up and beginning to photosynthesize, supporting the further growth of the frond.
	www.ebroadcast.com.au /lookup/encyclopedia/ci/Circinate_vernation.html (90 words)

	Sections of Anthurium
		is the presence of involute leaf vernation (the manner in which the blade is rolled or folded before opening).
		In all other sections of Anthurium (indeed all other Araceae except the Asian genus Lagenandra), the leaf vernation type (or more appropriately ptyxis) is supervolute, i.e., one margin is rolled inward with the other rolled around it so that a section in end view would look coiled like that of a conch shell.
		Even in face view the involute vernation is easily observed for the brief time that a leaf is emerging (Fig.
	www.aroid.org /genera/anthurium/anthsections08.html (417 words)

	Identification
		Bahiagrass (Paspalum notatum)- The stolons on this plant are very thick along with a rolled or folded vernation.
		This plant also has a folded vernation and a very smooth leaf blade.
		The ID characteristic of this plant is the 90 degree twist of the leaf blades.
	biscuit86osu.tripod.com /id.htm (457 words)

	Weed Management in Turf (Site not responding. Last check: 2007-10-13)
		Vernation is a term used to describe the arrangement of the youngest leaf in the bud shoot.
		Grasses with folded vernation have leaves that are folded in a V-shape.
		Leaves have folded vernation and are wide (1/4 to 1/2 inch), light green, and pointed at the tip.
	turfgrassmanagement.psu.edu /weedmgmt.cfm (7297 words)

	VERNATION
		The arrangement of the leaves within the leaf bud, as regards their folding, coiling, rolling, etc.; prefoliation.
		[French expression vernation: compare to Latin vernatio the sloughing of the skin of snakes.].
		English words defined with "VERNATION": Conduplicate ♦ Induplicate, Induplicative, Involuted ♦ Prefoliation ♦ Valvate.
	www.websters-online-dictionary.org /Ve/Vernation.html (563 words)

	GrassyWeeds (Site not responding. Last check: 2007-10-13)
		The vegetative keys are based primarily on the vernation, ligule, auricle, collar, and sheath.
		A folded vernation has the leaves folded in a V-shape with the margins meeting, but not overlapping.
		A rolled vernation has the leaves curled such that the margins are overlapping.
	www.atlantaturfgrass.com /grassyWeeds.html (397 words)

	The Identification of ... Grasses ... - Page 9 (Site not responding. Last check: 2007-10-13)
		In the convolute type the successive leaves are rolled alternately in clockwise and counter-clockwise manner, forming a cylindrical shoot as a rule (Plate I, Fig.
		The vernation may be determined easily by cutting the shoot across immediately below the ligule of the outermost leaf and examining the section with a hand lens.
		It may be determined, however, without sectioning, by an examination of the innermost leaf after stripping off or pulling back the outer leaves from the bud.
	www.caf.wvu.edu /~forage/library/cangrass/page9.htm (285 words)

	Learn more about Vernation in the online encyclopedia. (Site not responding. Last check: 2007-10-13)
		Learn more about Vernation in the online encyclopedia.
		Enter a phrase or search word in the box below.
		Hint: Play with putting spaces before and after your words to see the different results you get.
	www.onlineencyclopedia.org /v/ve/vernation.html (306 words)

	ferns
		All three have erect vernation and bear their sporangia on stalked spikes or sporangiophores that are attached to the petiole just below the blade.
		In Botrychium, the blade is pinnately divided and the venation is reticulate.
		You need to make a practice of keying ferns using either the hand out that I shall give you (or you may download here) or, if you are outside northern Utah, the second volume of Flora North America.
	herbarium.usu.edu /taxa/ferns.htm (581 words)

	Sections of Anthurium
		Leaf blades epunctate or at least not conspicuously dark glandular punctate.
		Vernation of leaf blade involute (i.e., with both margins rolled inward toward the midrib); plants frequently with "bird's-nest" habit; blades often thick, frequently more or less oblanceolate or obovate to elliptic.
		Vernation of leaf blades supervolute (i.e., with one margin rolled inward toward the midrib and the alternate margin rolled around the midrib and the rolled up opposite
	www.aroid.org /genera/Anthurium/anthsections03.html (297 words)

	Frond - Wikipedia, the free encyclopedia
		Growth of a fern frond differs from that of a leaf of a flowering plant.
		The fern frond unrolls from a tightly-coiled structure called a "fiddle-head" (see circinate vernation).
		Some fern species feature frond dimorphism, in which fertile and sterile fronds differ in appearance and structure.
	en.wikipedia.org /wiki/Frond (521 words)

	Amazon.com: "revolute vernation": Key Phrase page (Site not responding. Last check: 2007-10-13)
		Usually the leaves are heart-shaped at the base with a long petiole with a revolute vernation.
		The young, developing leaves are typically folded inwards (involute or conduplicate), except in Ardisiandra which has revolute vernation.
		Conspicuous secretory cavities, appearing as reddish brown or fl dots and streaks, are present in vegetative and repro-...
	www.amazon.com /phrase/revolute-vernation (461 words)

	Utah State University: Intermountain Herbarium
		All three have erect vernation and bear their sporangia on stalked spikes or
		You need to make a practice of keying ferns using either the hand out that I shall give you (or you may download the Acrobat file here) or, if you are outside northern Utah, the second volume of Bryophyte Flora North America.
		The following pictures illustrate circinate vernation, a false indusium, real indusia, pinnules, and bracts on on true fern.
	herbarium.usu.edu /3400polypodiophyta.htm (573 words)

	WEEDY GRASSES (Site not responding. Last check: 2007-10-13)
		It has rolled vernation, membranous ligules, prominent veination on the upper surface of the leaves, and pointed leaf tips.
		Zoysia has a rolled vernation as opposed to the folded vernation of bermudagrass.
		The leaf blades are slightly wider than bermuda, but the rest of the characteristics are basically the same.
	www.agry.purdue.edu /turf/pubs/ay11.htm (1238 words)

	The Fern Lover's Companion eBook
		This wool usually disappears later as the crosier unfolds into the broad green blade.
		The development of plant shoots from the bud is called vernation (Latin, ver meaning spring), and this unique uncoiling of ferns, “circinnate vernation.”
		The veins of a fern are free, when, branching from the mid-vein, they do not connect with each other, and simple when they do not fork.
	www.bookrags.com /ebooks/11365/6.html (487 words)

	Amazon.com: "involute vernation": Key Phrase page (Site not responding. Last check: 2007-10-13)
		entirely polyploid, the Parryi (4x) and the Auricula (6x) can be considered derived with respect to their closest relative with involute vernation, the Cuneifolia, which has one diploid and one tetraploid species.
		The leaves of Commelinaceae have been charac- terized as having involute vernation or ptyxis.
		Leaves leathery, smooth, with involute vernation, whitish- mealy or glandular.
	www.amazon.com /phrase/involute-vernation (486 words)

	Turfgrasses of Illinois
		This characteristic is easily demonstrated with the ryegrasses.
		Perennial ryegrass has a folded vernation, with leaf margins meeting but not overlapping, while annual ryegrass has a rolled vernation, with leaf margins overlapping.
		folded vernation (young leaf blades are folded as they emerge from the enclosing sheaths of older leaves)
	www.ag.uiuc.edu /~vista/html_pubs/TURFGRAS/turf.html (2304 words)

	Problemset
		rolled vernation, short auricles, and ridged abaxial leaf blades
		bunch-type growth, folded vernation, and coarse leaf texture
		The temperature range for optimum shoot growth of the festucoid turfgrasses is:
	wps.prenhall.com /chet_aghort_1/0,10264,1874570-content,00.utf8.html (249 words)

	PlantDetails (Site not responding. Last check: 2007-10-13)
		However, Kentucky bluegrass has a boat-shaped leaf tip and distinctive light-colored lines on both sides of the midrib.
		Tall fescue has rolled vernation in the leaf bud and perennial ryegrass has folded vernation.
		Also, tall fescue has rough leaf blade margins whereas annual and perennial ryegrass have smooth ones.
	www.turffiles.ncsu.edu /turfid/csPagedPdField.aspx?PlantID=FESAR (186 words)

	vernation definition - Dictionary - MSN Encarta
		Click here to search all of MSN Encarta
		Search for "vernation" in all of MSN Encarta
		< modern Latin vernation- < Latin vernare "grow in the spring" < vernus (see vernal)]
	encarta.msn.com /dictionary_1861733877_1861733888/nextpage.html (75 words)

	Tall Fescue Information System, Oregon State University
		Culm---Stem of grasses comprised of nodes and internodes, each node bearing a leaf
		Leaves of tall fescue are rolled in the bud (rolled vernation).
		Blades are 0.1 to 0.5 inch wide (3 to 12 mm) and 4 to 24 inches long (10 to 60 cm).
	forages.oregonstate.edu /IS/TFIS/enmain.cfm?PageID=32 (171 words)

	Botany 112 Lecture Syllabus
		Describe the morphology of a fern, making sure you understand leaf and sporangia terminology.
		What is circinate vernation, and how might it benefit the plant?
		How does the morphology of the sporangium aid in fern spore dispersal?
	www.conncoll.edu /academics/departments/botany/mar3.htm (473 words)

	SYSTEMATIC BIOLOGY (Site not responding. Last check: 2007-10-13)
		USE THE BACK ARROW TO RETURN TO PREVIOUS PAGE
		Circinate vernation is a type of leaf (or axis) emergence in which the appendage unrolls.
		The products of circinate vernation are called fronds.
	comenius.susqu.edu /BI/202/Plants/terms/circinate-vernation.htm (32 words)

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