aquatic, floating or submersed, reduced to small green bodies called fronds corresponding partly to leaf and partly to stem. Roots 0 or 1–21; root hairs absent
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8–3.5 cm, axile placentas 6, ovules as many as seeds, a few developing without embryos; style initially parallel to flower axis, usually elongating and curving
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Fritillary Etymology: Latin, fritillus, checkered, alluding to the markings on the tepals of many species Treatment appears in FNA Volume 26. Treatment on
13 KB (449 words) - 05:41, 30 July 2020
acaulescent to short-caulescent, scapose, from branched, woody caudices or bulblike structures; usually forming colonies with few-to-many rosettes. Stems to 25
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2 lines of dehiscence; ovary superior, 1-locular; ovules 1 or, rarely, 2–many; style 1 or absent; stigmas 1–3 (–5). Fruits utricles, dry, dehiscent or
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perichaetial leaves similar to stem-leaves or sometimes slightly differentiated. Seta to 6 mm. Capsule immersed, emergent, or exserted, globose to cylindric, smooth
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unbranched proximal to inflorescence, trigonous, (6–) 10–100 (–125) cm (high-climbing into trees), weak or wiry. Leaves few-to-many per culm, cauline, 3-ranked;
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pendent. Stems long to short-creeping, branched or not, bearing scales and few to numerous roots, usually dictyostelic. Leaves monomorphic to dimorphic, circinate
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sometimes repand to pinnatifid; cauline petiolate or sessile, blade margins usually entire, sometimes repand to dentate. Racemes (few to several-flowered
40 KB (1,647 words) - 11:54, 30 July 2020
ca. 250 (62 in the flora). Many species of Atriplex are halophytic, others occupy soils low in dissolved particulates. Prior to the 1900s, the genus Suckleya
45 KB (1,022 words) - 09:34, 30 July 2020
(sometimes appearing lateral) panicles of few-to-many heads, sympodial; bracteoles absent proximal to perianth. Flowers in few-flowered heads. Capsules 3-locular
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Volume 27. Treatment on page 655. Plants small to medium-sized, gregarious to tufted or caespitose, green to yellowish-brown, sometimes with pink tinge. Stems
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lateral papillae. Capsules indehiscent or dehiscent and 2-valved. Seeds few-many, elaiosome usually present. x = 8. Temperate North America and eastern
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monoicous. Capsule equal to or less than 2 mm, with few-to-many pseudostomata. Spores typically less than 30 µm, coarsely to finely papillose on both surfaces
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or tan to brown, aging white or gray to black. Spines 0–15+ per areole, white, yellow to brown, redbrown to gray, or black, sometimes partly to wholly
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small to large, in thin to thick mats, green, yellow-green, orange-green, or gold-green, brown with age. Stems irregularly branched; paraphyllia many, few
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242, 243, 547, 549, 551. Perennials; (sometimes pulvinate, caudex simple or many-branched); scapose or not; usually pubescent or pilose, sometimes glabrous
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umbellate, few to many-flowered, subtended by 2 large, lanceolate, scarious bracts. Flowers sessile or pedicellate; perianth connate proximally, red to white
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striolate to densely papillose; endostome basal membrane low to high, free or sometimes adherent to exostome at base, segments broad and keeled to linear
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in these subfamilies possess the primitive states for many characteristics in Araceae and share few derived characteristics with other aroid genera (M. H
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Stems 0.2–1 (–2) cm, weakly to strongly rounded julaceous or short-gemmiform, not or weakly branched; rhizoids few or many, micronemata and macronemata
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perennial; usually tightly to loosely cespitose, sometimes rhizomatous. Culms annual or perennial, not woody, branches 1 to many at the upper nodes. Leaves
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papery. Stems simple or branched. Leaves few; blade pleated, lanceolate to ± linear. Inflorescences rhipidiate, few-flowered; spathes green, unequal, outer
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cespitose or not, often scaly-rhizomatous. Culms procumbent to erect, usually trigonous, wiry to stout. Leaves basal and cauline, polystichous, mostly 3-ranked;
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creeping, or erect, few-to-many branched; vessel elements present. Rhizophores borne on upperside of stems, throughout stem length or confined to base of stem
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various types of shrubs, trees to 25 m tall, and many xerophytic stem-succulents. Although succulents are primarily restricted to the Old World, a handful of
18 KB (1,360 words) - 18:28, 29 July 2020
either side of costa, extending to decurrencies; laminal cells smooth; basal-cell walls with few pits or rarely pitted to mid leaf; medial and distal cells
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cauline bracts ovate to linearlanceolate. Inflorescences many-flowered racemes or spicate racemes. Flowers resupinate, white, yellow-green to green, nearly sessile;
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included in the key. Many names have been misapplied in Delphinium. The few misapplied names mentioned in discussions below refer to relatively widespread
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applied to species epithets. Key to Groups of Cotoneaster Key to Species by Group Group A. Shrubs, prostrate or long-trailing, rarely a few shoots to 30 cm
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blade margins dentate to pinnately lobed, ± spiny, faces glabrous or ± glandlar and/or ± tomentose. Heads discoid, borne singly or in few-headed cymiform arrays
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relationships of their species to other members of Panicum sensu lato are not well enough understood to suggest a better treatment, nor to justify the name changes
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Herbs, annual, sometimes biennial, 0.6–3.5 dm; with fibrous-roots. Stems few-to-many, sometimes solitary (var. meadii), ascending or erect, often decumbent
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Inflorescences terminal and axillary, pedunculate, elongate, many-flowered, simple spikes or few-branched panicles; flowers crowded together at tips, becoming
7 KB (372 words) - 15:30, 15 December 2020
of 2 types, bearing either megasporangia that few in number (ca. 10), each with single megaspore, or many microsporangia, each with 64 microspores. Spores
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exceeding flowers. Flowers few-to-many, resupinate, pedicellate; perianth free, spreading or loosely connivent, subequal; sepals ovate to ovatelanceolate, concave;
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indurate, smooth to slightly rugose, stramineous to dark-brown, margins scarious, involute, clasping the paleas; upper paleas indurate, smooth to slightly rugose
22 KB (1,167 words) - 04:18, 30 July 2020
Inflorescences terminal, lax to rather dense spicate racemes; bracts large and foliaceous to reduced. Flowers few-to-many, resupinate, pedicellate, sometimes
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prominent. Flowers few-to-many, resupinate; dorsal sepal, sometimes lateral sepals, and petals connivent, forming hood distal to lip; petals ± obliquely
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some traits in the key to tribes and in keys to genera within tribes may be difficult to assess, we have also provided a key to artificial groups of composites
275 KB (5,940 words) - 15:30, 15 December 2020
or spreading, with 1 central unbranched vein, needlelike to lanceolate to ovate, remote to dense and imbricate, with or without basal and/or mucilage
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symmetric, or inclined, ovoid to oblong-cylindric, slightly to strongly arcuate; peristome double; exostome margins almost entire to dentate; endostome cilia
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obtuse to acuminate, unawned; paleas from 2/3 as long as to subequal to the lemmas, distinctly 2-keeled, margins and intercostal regions milky white to slightly
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connective blunt to nearly spheric or cuboid; pistils 2-8 (-12), sessile to stipitate, distinct, glabrate; ovules several (sometimes few) in 2 staggered
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foliose; rhizoids few, at base of stems and apices of attenuate branches. Stem-leaves very broadly ovate to lanceolate; margins serrate to serrulate, sometimes
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rhizomatous. Leaves few-to-many, basal, petiolate; blade not articulate, convolute, mostly ovate to elliptic, soft. Inflorescences terminal, many-flowered spikes
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Etymology: Greek polys, many, and thrix, hair applied in antiquity to plants with fine, hairlike parts, including mosses now alluding to hairy calyptra Treatment
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cm; taproots. Stems usually 1, thinly to densely gray or white-tomentose, sometimes ± glabrate; branches few–many, usually from above mid or near base in
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photosynthesis and have external and internal structure similar to that of a leaf, and many authors refer to them as leaves. None. Trillium subg. Phyllantherum, Trillium
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than in the past, when as many as 15 genera were recognized, which broadly correspond to sections recognized here, and as few as three (P. A. Munz 1965)
26 KB (2,106 words) - 21:01, 7 June 2022