Monographs Details: Neblinaea
Authority: Carlquist, Sherwin. 1957. Anatomy of Guayana Mutisieae. Mem. New York Bot. Gard. 9 (3): 441-476.
Scientific Name:Neblinaea

A number of similarities may be found between those genera of the present study having actinomorphic corollas (Gochnatinae) and those possessing bilabiate corollas (Gerberinae). Flowers of Neblinaea (fig. 110) are exemplary in this respect. Corollas of the only species, N. promontorium (fig. 110A), show lateral bundles in the two free lobes. It is of considerable interest to find that the lateral bundles of the three united lobes are not united as they are in bilabiate flowers of more advanced Mutisieae, such as are described below. The two pairs of adjacent "laterals" of this portion of the corolla fuse in the basal portion of the corolla, or in the achene top. Beneath the three sinuses beside the two lobes which are not united, however, the laterals fuse immediately below the sinuses. In addition to the full representation of lateral bundles in this corolla, median bundles are occasionally found either in the strap-shaped portion of the corolla or in the lobes which are separate. These median bundles terminate freely at both ends and extend only a short distance into the corolla tube. Stamen traces unite with corolla bundles in the top of the achene. As in the three preceding genera, ten bundles are present in the achene (fig. 110 C), five of these being additional to those connected to corolla bundles. As in Quelchia, four bundles are present in the style (fig. 110 B); the two lateral style bundles fuse with the dorsiventral pair at various points above the base. The achene structure is also identical to that of Quelchia in that the dorsiventral style bundles fuse with external achene wall bundles in the achene top (fig. 110 E), while the lateral style bundles continue into the achene as interior bundles accompanying the bands of stigmatoid tissue. The fusion of all bundles into a single strand of vascular tissue at the base of the achene is also like the condition found in Quelchia. The similarities of floral venation between Quelchia and Neblinaea are not cited here to suggest a close relationship between these genera. Rather, simplifications (as compared to genera described above) such as they show may occur independently.