Monographs Details: Irlbachia tatei (Gleason) Maguire
Authority: Maguire, Bassett. 1978. The botany of the Guayana Highland--part XI. Mem. New York Bot. Gard. 32: 1-391.
Family:Gentianaceae
Description:Distribution and Ecology - Distribution. Mesas of the Roraima sedimentary series of Amazonas, Venezuela. VENEZUELA. Terrkorio Amazonas: Cerro Duida, Tate 743 (holotype NY, photo NY); herb 3 ft tall, flowers pink-magenta, calyx persistent, summit Mount Duida, Brocchinia Hills, 4500 ft, 4 Jan 1929, Tate 587 (paratype NY); Brocchinia Hills, Duida, 1700-2000 m alt, 1 Sept 1944, Steyermark 58167 (F, NY); along Culebra Creek, 1600 m elev, Cerro Duida, 22-24 Apr 1949, Maguire & Maguire, Jr. 29100 (NY); simple or little branched herb to 1 m, flowers pure pink, Culebra Creek drainage, 1500 m, in Bonnetia-Byrsonima cretacea forest, Cerro Duida, Rio Cunucunuma, 19 Nov 1950, Maguire, Cowan & Wurdack 29556 (NY); herb to 1 m, flowers lavender-pink, Culebra Creek, 1500-1600 m elev, Cerro Duida, Rio Cunucunuma, 21 Nov 1950, Maguire, Cowan & Wurdack 29625 (NY)- herb to 1 m, flowers deep rose, occasional in elfin forest, vicinity summit camp, Cerro Huachamacari, Rio Cunucunuma, 1800 m alt, 10 Dec 1950, Maguire, Cowan & Wurdack 30106 (NY); flowers rose-pink, occasional, summit of Cerro Huachamacari, Rio Cunucunuma, in dense woodland along right fork of Caño de Dios 1800 m alt, 13 Dec 1950, Maguire, Cowan & Wurdack 30172 (NY); flowers rose-red, summit camp to west escarpment face, Cerro Huachamacari, Rio Cunucunuma, 1800 m alt, 14 Dec 1950, Maguire, Cowan & Wurdack 30234 (NY); herb to 1 m, flowers clear pink, southwest escarpment Cerro Huachamacari, Rio Cunucunuma, 1850 m ak, 17 Dec 1950, Maguire, Cowan & Wurdack 30286 (NY); flowers clear pink, occasional, cumbre Cerro Paru, 2000 m alt, 7 Feb 1951, Cowan & Wurdack 31287 (NY); herbaceous annual to 7 dm tall, flowers purple-blue, infrequent, in scrub woodland on south escarpment slopes, Cerro Guanay, Caño Guaviarito, Rio Manapiare, 4 Feb 1951, Maguire, Phelps, Hitchcock & Budowsky 31769 (NY). Estado Bolivar: small plant 12 inches high, flower purple, in sabana on west slope of Uaipan-tepui, 1400 m alt, 27 Jan 1948, Phelps & Hitchcock 312 (NY).

Discussion:8. Irlbachia tatei (Gleason) Maguire, comb nov Fig 85A-M, 86. Calolisianthus tatei Gleason, Bull. Torrey Club 58: 449. 1931. Lisianthus tatei (Gleason) Steyermark, Fieldiana Bot. 28: 498. 1953. ILisianthus scabridulus Steyermark, Fieldiana Bot. 28: 496. 1953. Type. Corolla lobes rich lavender, leaves membranaceous, edge of bluff, Cerro Duida, southeastern-facing slopes along Caño Negro (tributary Caño Iguapo), 1200 m alt, Territorio Amazonas, Venezuela, 25-26 Aug 1944, Julian A. Steyermark 57979 (holotype F). Type. Dry crests of Savanna Hills, flowers pink, summit of Mount Duida at 4400 ft, Aug 1928-Apr 1929, G. H. H. Tate 743 (holotype NY, photo NY).
Distribution:Venezuela South America|