Beaman & Judd 1996 (Article) Pseudalcantarea

Systematics of Tillandsia subgenus Pseudalcantarea (Bromeliaceae)

Author(s):—R.S. Beaman & W.S. Judd

Publication:—Brittonia 48(1): 1-19. (1996)

Abstract:—Beaman, R. S. and W. S. Judd (Department of Botany, 220 Bartram Hall, University of Florida, Gainesville, FL 32611-8526; and Herbarium (FLAS), RO. Box 110530, Gainesville, FL 32611-0530, U.S.A.). Systematics of Tillandsia sub- genus Pseudalcantarea (Bromeliaceae). Brittonia 48: 1-19. 1996.--Tillandsia subg. Pseudalcantarea (Bromeliaceae) includes four species as currently delim- ited. The phylogenetic relationships of the species in this group are investigated by a cladistic analysis using 16 morphological characters, with Vriesea subg. Alcantarea employed as the outgroup. TilIandsia subg. Pseudalcantarea is found to be paraphyletic. Tillandsia grandis and T. paniculata are transferred to Til- landsia subg. Tillandsia because they are hypothesized to share a more recent common ancestor with T. utriculata, the type of the genus, than they do with the other two species placed in subg. Pseudalcantarea, i.e., T. baliophylla and T. viridiflora. These latter two species possibly constitute a basal clade within Til- landsia and are provisionally retained within subg. Pseudalcantarea.

Keywords:—Tillandsia, Tillandsioideae, Bromeliaceae

Taxonomy:—Tillandsia paniculata Transferred from subgenus Pseudalcantarea to subgen. Tillandsia (p.2).