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243:. Sori may be circular or linear. They may be arranged in rows, either parallel or oblique to the costa, or randomly. Their location may be marginal or set away from the margin on the frond lamina. The presence or absence of indusium is also used to identify fern taxa.
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and other fungi, the sorus is surrounded by an external layer. In some red algae, it may take the form of depression into the thallus.
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The shape, arrangement, and location of the sori are often valuable clues in the identification of fern
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In ferns, the sori form a yellowish or brownish mass on the edge or underside of a fertile
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Sori with indusia at different stages of development.
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223:generation, the sporangia within producing
301:Sori covering a frond's entire underside (
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91:Learn how and when to remove this message
211:), which forms an umbrella-like cover.
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54:This article includes a list of general
27:Cluster of sporangia in ferns and fungi.
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133:(structures producing and containing
107:The underside of a fertile frond of
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435:Encyclopædia Britannica Online
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456:Fungal morphology and anatomy
437:. Retrieved 20 November 2007.
416:References and external links
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424:– Fern identification tool.
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235:As an aid to identification
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429:Encyclopædia Britannica
215:Life cycle significance
75:more precise citations.
180:'stack, pile, heap').
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355:Meadowsweet Rust gall
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110:Dicksonia antarctica
353:Fungal sori of the
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219:Sori occur on the
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263:Phlebodium aureum
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289:Linear sori
73:introducing
445:Categories
396:Sword fern
369:Large sori
221:sporophyte
147:coenosorus
56:references
260:Sorus of
184:Structure
167:Neo-Latin
161:Etymology
155:coenosori
131:sporangia
410:Sorocarp
404:See also
201:indusium
18:Indusium
431:: sorus
247:Gallery
225:haploid
209:indusia
190:lichens
69:improve
433:2007.
229:spores
135:spores
58:, but
461:Ferns
197:frond
178:sōrós
174:σωρός
165:This
143:fungi
139:ferns
137:) in
119:sorus
241:taxa
227:meio
145:. A
141:and
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188:In
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