chlorophyllous

The scarious floral bracts consist of narrow chlorophyllous bands, tinted with purple along the midrib.

They are deciduous, chlorophyllous, sympodial, tuberoid terrestrial orchids with a single, cylindrical leaf that encloses the stem.

In this type, the spores germinate into a germ filament composed of barrel-shaped chlorophyllous cells with one or more rhizoids at the base cell.

At the tips of these pegs pectinases are produced to digest the lamella between leaf cells which facilitates entry into both hyaline and chlorophyllous cells.

Their chlorophyllous zones, a darker green zone where chlorophyll is concentrated, appear on the upper half of the outer phyllaries, to the upper third or along the outer midveins of the inner phyllaries.

Amaryllideae is marked by a large number of synapomorphies: extensible fibers in the bulb tunics, bisulculate pollen with spinulose exine, scapes with a sclerenchymatous sheath, unitegmic or ategmic ovules, and nondormant, water-rich, nonphytomelanous seeds with chlorophyllous embryos.