Aratitiyopea lopezii is a robust perennial species of Xyridaceae from seasonally saturated, mid- to high-elevation, sandstone and granite sites in northern South America. The species lacks the scapose inﬂorescence characteristic of Xyridaceae and, having the gestalt of a rhizomatous bromeliad, it is seemingly aberrant in the family. However, closer examination conﬁrms features consistent with the family and the previously noted morphological similarities to Orectanthe. Details of inﬂorescence structure and ﬂoral morphology are presented and compared to other genera of Xyridaceae.
Campbell, Lisa M. and Stevenson, Dennis Wm.
"Inflorescence Architecture and Floral Morphology of Aratitiyopea lopezii (Xyridaceae),"
Aliso: A Journal of Systematic and Evolutionary Botany:
1, Article 17.
Available at: http://scholarship.claremont.edu/aliso/vol23/iss1/17