![Sample our Environment & Agriculture journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5934/TOC-Subject-Sample-2021-Environment-Agriculture.jpg"})
Abstract
In vitro development of carpospores of Petroglossum nicaeense (Duby) Schotter. This paper describes the germination of carpospores of P. nicaeense (Phyllophoraceae) and the development on glass of new tetrasporophytes to the size of 3–4 mm. Different patterns of development are observed: 1) formation of one or two rizoidal filaments which give rise to an adhesive disc; 2) formation of a morula, of limited growth, and of rizoidal filaments which then originate adhesive discs; 3) formation of a morula which originates a single frond, and formation of filaments that do not form adhesive discs. Eventually, the discs give rise to one or more outgrowths that develop into erect fronds. These fronds reach a 4 mm length 3 months after germination.