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 (krĭs′tāt′) also cris·tat·ed (-tā′tĭd)
Having or forming a crest or crista.

[Latin cristātus, from crista, tuft; see sker- in Indo-European roots.]


(ˈkrɪsteɪt) or


1. (Biology) having a crest
2. (Biology) forming a crest
[C17: from Latin cristātus, from crista crest]
References in periodicals archive ?
2, F-G); light castaneous (whitish), cristate spores (Fig.
2 mm long, 1-3-celled, ascending to spreading, acicular; indusia absent; spores cristate.
Pachyglossa has cristate, spinose, and perforate perispores, whereas those of subsect.
This new species is apparently restricted to southern Brazil, and is characterized by cristate to irregularly reticulate megaspores and microechinate microspores.
5 [micro]m in equatorial view, with an irregular cristate perispore.
The cristate type, however, seems unique among dryopteroid ferns.
Characteristics Trachypteris pinnata Trachypteris gilliana Fertile fronds Pinnate Trifid Spore ornamentation Cristate Ridged part.
8 mm long, 3-6-celled, acicular, lax, spreading; indusia fugacious, minute, consisting of a few hair-like scales, often covered by sporangia and apparently absent; spores cristate.
3 mm long, 1- or 2-celled, ascending; indusia absent; spores cristate.
5-45 18 Acacia Grey Vertosol Logie harpophylla, Casuarina cristate woodland Cecilvale 3-35 19 Eucalyptus Grey Vertosol populnea, D.
Using the Lellinger and Taylor system, the following patterns are found in Isoetes microspores: aculeate, with bullae (radially symmetrical, low protuberances), no higher than wide, with a broad base and acute apex; cristate, with walls that are narrow, sharp edged, and nonanastomosing; and echinate, with stelae (radially symmetrical, high protuberances) higher than wide, conical, widest near base.