The specimens collected were sessile and the pileus lateral, somewhat broadened at the free end, or petaloid.
"Studies of American Fungi. Mushrooms, Edible, Poisonous, etc."
George Francis Atkinson
Calyx of 12 sepals arranged in 3 whorls, the inner ones broad and petaloid.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera
Calyx of 4 sepals, green outside; petals of indefinite number, overlapping in many rows, and gradually passing into an indefinite number of stamens; outer row of stamens with petaloid filaments and short anthers, the inner yellow stamens with slender filaments and elongated anthers; carpels of indefinite number, united into a compound pistil, with spreading and projecting stigmas.
"Wild Flowers Worth Knowing"
Neltje Blanchan et al