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423:, it is differently defined by various authorities. Some apply it to the leaflets of a pinna, especially the leaflets of bipinnate or tripinnate leaves. Others also or alternatively apply it to second or third order divisions of a bipinnate or tripinnate leaf. It is the ultimate free division (or leaflet) of a compound leaf, or a pinnate subdivision of a multipinnate leaf.
102:-like arrangement of parts (arising from one side of an axis only). Pinnation is commonly referred to in contrast to "palmation", in which the parts or structures radiate out from a common point. The terms "pinnation" and "pennation" are
171:, and in ferns, the leaflets or segments are typically referred to as "pinnae" (singular "pinna"). Plants with pinnate leaves are sometimes colloquially called "feather-leaved". Most of the following definitions are from Jackson's
184:
pinnatifid and pinnatipartite: leaves with pinnate lobes that are not discrete, remaining sufficiently connected to each other that they are not separate leaflets.
456:
Pinnation occurs in certain waterway systems in which all major tributary streams enter the main channels by flowing in one direction at an oblique angle.
272:
paripinnate: pinnately compound leaves in which leaflets are borne in pairs along the rachis without a single terminal leaflet; also called "even-pinnate".
275:
imparipinnate: pinnately compound leaves in which there is a lone terminal leaflet rather than a terminal pair of leaflets; also called "odd-pinnate".
152:
187:
pinnatisect: cut all the way to the midrib or other axis, but with the bases of the pinnae not contracted to form discrete leaflets.
143:) arising at multiple points along a common axis. For example, once-divided leaf blades having leaflets arranged on both sides of a
106:, and although they are sometimes used distinctly, there is no consistent difference in the meaning or usage of the two words.
526:
480:
342:
bipinnate: pinnately compound leaves in which the leaflets are themselves pinnately compound; also called "twice-pinnate".
508:, Volume 100, 1953, page 165: "The zinc is recovered electrolytically as 'flake' powder consisting of pinnate crystals."
601:
239:
548:
225:
345:
tripinnate: pinnately compound leaves in which the leaflets are themselves bipinnate; also called "thrice-pinnate".
211:
197:
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115:
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17:
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unipinnate: solitary compound leaf with a row of leaflets arranged along each side of a common
362:
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tetrapinnate: pinnately compound leaves in which the leaflets are themselves tripinnate.
597:
544:
522:
476:
436:
328:
124:
72:
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496:. Harrison and Sons, for the Committee of the Captain Scott Arctic Fund. 1922.
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431:
In animals, pinnation occurs in various organisms and structures, including:
128:
132:
68:
120:
80:
160:
148:
140:
30:
55:-like or multi-divided features arising from both sides of a common
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Nicholas
Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall.
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103:
76:
64:
52:
352:
144:
136:
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pinnate-pinnatifid: pinnate, with the pinnae being pinnatifid.
123:, pinnation is an arrangement of discrete structures (such as
168:
156:
568:
A Glossary of
Botanic Terms with their Derivation and Accent
164:
99:
91:
95:
473:
Pigment
Compendium: A Dictionary of Historical Pigments
447:
is known as the pinnate spadefish or pinnate batfish.
581:
492:Charles Seymour Wright, Raymond Edward Priestley.
98:". A similar concept is "pectination", which is a
570:. Gerald Duckworth & Co. London, 4th ed 1928.
332:Bipinnate leaves of species of palm in the genus
611:
538:
34:A simple pinnate (unipinnate) frond of the fern
163:have pinnately divided leaves. Most species of
419:); either as such or in the Anglicised form:
541:Chambers Dictionary of science and technology
562:
560:
323:
327:
29:
557:
14:
612:
506:Journal of the Electrochemical Society
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178:
147:are pinnately compound leaves. Many
86:The term derives from the Latin word
167:have pinnate or more highly divided
24:
573:
435:Some muscles can be unipinnate or
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636:
543:. Edinburgh: W. and R. Chambers.
59:. Pinnation occurs in biological
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539:Collocott, T. C., ed. (1974).
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475:. Butterworth-Heinemann 2008.
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1:
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411:) is the Latin diminutive of
7:
566:Jackson, Benjamin, Daydon;
173:Glossary of Botanical Terms
116:Glossary of leaf morphology
27:Type of spatial arrangement
10:
641:
426:
113:
579:Chittenden, Fred J. Ed.,
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67:, such as some forms of
51:) is the arrangement of
37:Blechnum appendiculatum
519:Remote Sensing Geology
338:
324:Iteration of divisions
41:
331:
114:Further information:
75:, and in patterns of
33:
596:. Isha Books. 2005.
594:Dictionary of Botany
90:meaning "feather", "
267:Number of divisions
339:
179:Depth of divisions
42:
527:978-3-540-43185-5
521:. Springer 2003.
481:978-0-7506-8980-9
437:bipinnate muscles
246:pinnately-divided
16:(Redirected from
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620:Plant morphology
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592:Shastri, Varun.
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151:(notably the
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47:(also called
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289:even pinnate
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48:
44:
43:
35:
303:odd pinnate
260:pinnatisect
155:) and most
121:Botanically
81:stream beds
614:Categories
494:Glaciology
460:References
397:tripinnate
161:grevilleas
141:appendages
61:morphology
441:The fish
415:(plural:
407:(plural:
403:The term
369:bipinnate
49:pennation
45:Pinnation
18:Pinnately
409:pinnulae
137:branches
125:leaflets
65:crystals
427:Animals
421:pinnule
405:pinnula
335:Caryota
104:cognate
94:", or "
77:erosion
53:feather
625:Leaves
600:
547:
525:
479:
417:pinnae
353:rachis
169:fronds
157:cycads
145:rachis
110:Plants
413:pinna
165:ferns
149:palms
139:, or
133:lobes
129:veins
88:pinna
63:, in
598:ISBN
545:ISBN
523:ISBN
477:ISBN
159:and
100:comb
92:wing
57:axis
131:,
96:fin
79:or
71:or
69:ice
616::
559:^
175::
135:,
127:,
83:.
604:.
553:.
529:.
483:.
355:.
40:.
20:)
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