41. One goal of biological taxonomy is to achieve a stable circumscription for every taxon. 42. This circumscription was generally accepted until the 1980s. 43. The IUCN argues for a rather inclusive circumscription . 44. Their circumscription of the tribe was different from that which is now generally accepted. 45. This uncertainty of circumscription reflected a wider problem with the petaloid monocots in general. 46. This circumscription differs from the phylogenetic descriptions of Meerow and colleagues in several respects. 47. By 1875 the current circumscription was relatively settled. 48. Between 1919 and 1931 he was repeatedly elected in the circumscriptions Nocrich and Senate. 49. The inevitable circumscription of their relationship can be traced through the progression in their correspondence. 50. Older circumscriptions of the family commonly included the genera now included in Heliconiaceae and Strelitziaceae.
