Ambrosina bassii L.

Leaf Morphology

Ambrosina bassii has oval leaves that measure 3.5 to 6 cm long, and these leaves resemble the leaves of many aroid seedlings.

Inflorescence Structure

Its inflorescence is 2.5 cm long, bent over, and bears an unusual egg-shaped spathe that is greenish brown with spotted markings. The interior of the egg-shaped spathe is divided into two chambers: one chamber holds a single female flower, and the other holds 8 to 10 male flowers.

Seed Characteristics

The seeds of this species have an elaiosome, but seeds are rarely produced because Ambrosina bassii has a low reproductive rate.

Fungal Leaf Spot Cause

The foliage of Ambrosina bassii can develop reddish-brown leaf spots between 0 and 1 mm in size, which are caused by the phytopathogenic fungus Entylomaster dietelianus (Bubák) Vánky & R.G. Shivas, also synonymously known as Entyloma dietelianum Bubák.

Fungal Disease Features

Numerous spores measuring 10 to 16 μm across are embedded within these leaf spots, and this specific fungal disease only affects plants in the family Araceae.