Indusium minute, concealed beneath the sorus, divided into a few beaded hairs. From Wordnik.com. [The Fern Lover's Companion A Guide for the Northeastern States and Canada] Reference
Indusium star-shaped, of a few irregular segments fixed beneath the sorus, often obscure. From Wordnik.com. [The Fern Lover's Companion A Guide for the Northeastern States and Canada] Reference
Indusium hood-shaped, fixed centrally behind the sorus and arching over it, soon withering, often illusive. From Wordnik.com. [The Fern Lover's Companion A Guide for the Northeastern States and Canada] Reference
Indusium cup-shaped, fixed beneath the sorus, supported by the tooth of a leaf; sporangia borne in an elevated, globular receptacle open at the top. From Wordnik.com. [The Fern Lover's Companion A Guide for the Northeastern States and Canada] Reference
This occasionally happens from the elongation of the normally placed sorus, which thus extends to the margin, and returns on the upper side, when the sori chance to be placed opposite to the marginal crenatures. From Wordnik.com. [Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants] Reference
Sori sunt continui ut in Pteride, pro qua facile habetur, sed character yidianti: sorus nempe indusio insertus, non aegre deprehenditur. From Wordnik.com. [Species plantarum : exhibentes plantas rite cognitas ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas] Reference
Tamen, heu! sorus adulteros. From Wordnik.com. [The Iliad of Homer (1873)] Reference
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