The family is characterized by flattened and scutate ascomata (thyriothecia), wich are usually ostiolate and develop superficially or in the cuticle of the living host's leaves; the peridium is dark coloured, mostly bluish-green, bluish-black or brown, and has a non-radiate, often meandrous interwoven cells structure (textura epidermoidea); the asci are bitunicate, clavate to cylindrical, ovate or
saccate, and the ascospores are hyaline, long clavate with mostly more than two transverse septa; the pseudoparaphyses are narrowly cellular and tend to deliquesce in mature specimens and are not always present (Batista, 1959; von Arx & Muller, 1975; Wu et al., 2011; Hyde et al., 2013; Hongsanan et al., 2014).
In our observation, the involucre in Corylus, Ostryopsis, Carpinus, and Ostrya is initiated from a semicircular or circular primordium in one whorl and sometimes with several slight divisions (lobes) at the primordial stage that develops into different structures at maturation to enclose fruit, such as campanulate or tubular in Corylus and Ostryopsis, leaf- shaped in Carpinus, and
saccate in Ostrya (Li & Skvortsov, 1999).
Cheilocystidia 35 -61.5 x 9-15 um fusoid-ventricose, subutriform,
saccate, clavate and filamentous types present, hyaline to yellowish in KOH.
Seminal vesicle elongate; prostatic reservoir
saccate. Vagina tubular dextral well sclerotized; seminal receptacle rounded.
An ovate, Spherical or irregularly lobed,
saccate and clathrate colony of numerous spherical cells, densely aggregated within a hyaline gelatinous matrix.
Testis intercecal, postovarian, bacilliform 119 (101-131; n = 12) long, 30 (27-38; n = 12) wide, vas deferens looping left intestinal caecum; seminal vesicle
saccate, immediately posterior to copulation complex; prostatic reservoir
saccate, besides the seminal vesicle.
are characterized by an apsacline ventral interarea with a convex pseudodeltidium, long, slightly divergent dental plates flanking a strongly elongate subtriangular muscle field and
saccate ventral mantle canals.
Gilbert JJ (1976) Polymorphism in rotifer Asplanchna sieboldi biomass, growth, and reproductive rate of
saccate and campanulate morphotypes.
no vagina (1) F single ovary (2) F paired testes (3) M paired lateral excretory vesicles (4) N doliiform pharynx (5) N
saccate gut (6) N
Liquid spreads across the ovule's neighbouring surfaces, collecting buoyant
saccate pollen (Tomlinson et al., 1997).