perichaetial

perichaetial

(ˌpɛrɪˈkiːtɪəl)
adj
(Botany) denoting the leaves in mosses that surround the archegonia and, later, the base of the sporophyte
References in periodicals archive ?
Perichaetial leaves broadly ovate, abruptly involute-concave at the apex.
Perichaetial leaves broadly ovate with rounded apex, margins entire.
Perichaetial leaves large, broadly ovate, abruptly sharp pointed at the apex, borders wide, almost consisting of all green cells near the base.
Perichaetia lateral on stem; inner perichaetial leaves straight, plicate, lanceolate, erect, margin entire, apex acuminate, costa absent or sometimes short and single, cells fusiform to linear, thin-walled and smooth; vaginula with paraphyses.
Perichaetia lateral on stem; inner perichaetial leaves straight, not plicate, ovate-lanceolate, erect, margin entire or irregularly denticulate near apex, apex shortly acuminate, sometimes rounded or obtuse, costa single, usually rudimentary, cells fusiform, porose and smooth; vaginula naked.
Perichaetia lateral on stem; inner perichaetial leaves straight, not plicate, ovate-lanceolate, erect, margin entire or slightly sinuate, apex abruptly and shortly to longly acuminate, costa long and single, almost reaching the apex, cells linear, thin-walled, smooth, sometimes initial cells of rhizoids present in upper part of perichaetial leaves; vaginula naked.