Monographs Details: Digomphia
Authority: Maguire, Bassett. 1978. The botany of the Guayana Highland--part X. Mem. New York Bot. Gard. 29: 1-288.
Discussion:8. Digomphia Bentham, Hook. Lond. Jour. Bot. 5: 364. 1846.
Type. D. laurifolia Benth.
Jacaranda sect Nematopogon D C , Prodr. 9: 232. 1845. Type. J. densicoma Mart, ex DC. =D. densicoma (Mart, ex DC.) Pilger.
Nematopogon (DC.) Bur. & K. Schum., Mart. Fl. Bras. 8(2): 395. 1897.
This segregate from Jacaranda is known only from the Guayana region. It is characterized by a purple or lavender Jacaranda-like flower with an elongate glandular-pubescent staminode and large calyx composed of foliaceous lobes. The compressed oblong fruit is the same as that of Jacaranda. The calyx and strongly divided tip of the staminode are the only features separating Digomphia from Jacaranda. Two species occur in the Guayana Highland and a third (see D. ceratophora. Part II) in the adjacent lowlands.