Bromeliaceae Literature (most recent first) — G.S. Varadarajan
- Varadarajan 1990 (1990) Patterns of geographic distribution and their implications on the phylogeny of Puya. Journal of the Arnold Arboretum 71: 527-552.
- Varadarajan & Flores 1990 (1990) Novelties of Puya Molina (Pitcairnioideae), II: A New Species from Chile. Journal of the Bromeliad Society 40(4): 161-165.
- Varadarajan 1989 (1989) Novelties of Puya Molina (Pitcairnioideae), I: A New Species from Bolivia. Journal of the Bromeliad Society 39(3): 121-123.
- Varadarajan & Gilmartin 1988a (1988) Phylogenetic relationships of groups of genera within the subfamily Pitcairnioideae. Systematic botany 13(2): 283-293.
- Varadarajan & Gilmartin 1988b (1988) Taxonomic Realignments within the Subfamily Pitcairnioideae (Bromeliaceae). Systematic botany 13(2): 294-299.
- Varadarajan & Gilmartin 1988c (1988) Seed Morphology of the subfamily Pitcairnioideae (Bromeliaceae) and Its Systematic Implications. Amer. J. Bot 75(6): 808-818.
- Varadarajan 1988 (1988) Genus Puya molina (Pitcairnioideae): relocation of several rare species and some preliminary remarks on geographic distributions and species divergence. Journal of the Bromeliad Society 38(6): 243.
- Varadarajan & Forero 1987 (1987) Genus Pitcairnia (Bromeliaceae): New Taxa from Colombia, Nomenclatural Changes, and Species Complexes quick view. Systematic botany; quarterly journal of the American Society of Plant 12(3): 410-415.
- Varadarajan 1987 (1987) Foliar scales of the subfamily Pitcairnioideae (Bromeliaceae). Systematic Botany 12(4): 562-571.
- Varadarajan 1986 (1986) Taxonomy and evolution of the Pitcairnioideae. Washington State Univ. Pullman, Univ. Microfilms, Ann Arbor USA, pp.
- Varadarajan 1986b (1986) A New Species of Brocchinia from Venezuela. Journal of the Bromeliad Society 36(6): 251-254.