Monographs Details: Abolboda macrostachya var. angustior Maguire
Authority: Carlquist, Sherwin. 1960. Anatomy of Guayana Xyridaceae: Abutboda, Orectanthe and Achtyplola. Mem. New York Bot. Gard. 10: 63-117.
Family:Xyridaceae
Discussion:Upper levels in the inflorescence axis of this variety show a structure like that mentioned for such levels in A. linearifolia, except that the cortical region consists wholly of parenchyma cells like those of the hypodermis. At lower levels, however, 2-3 hypodermis layers are present; interior to these is chlorenchyma. Outside of the sclerenchyma ring, numerous bundles occur; these are embedded in the non-photosynthetic parenchyma. A single layer of strongly thickened sclereids forms the outermost layer of the sclerenchyma ring, and several layers of lignified parenchyma occur within that layer, as described for A. amcrica-na. Numerous bundles are present in the central thin-walled ground tissue. The tendency toward amphivasal construction of bundles is prominent at lower levels.