Systematic revision of the genus Sorghastrum (Poaceae: Andropogoneae)

Abstract

INFORMATION TO USERSThe most advanced technology has been used to photo graph and reproduce this manuscript from the microfilm master. UMI films the original text directly from the copy submitted. Thus, some dissertation copies are in typewriter face, while others may be from a computer printer.In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyrighted material had to be removed, a note will indicate the deletion.Oversize materials (e.g., maps, drawings, charts) are re produced by sectioning the original, beginning at the upper left-hand corner and continuing from left to right in equal sections with small overlaps. Each oversize page is available as one exposure on a standard 35 mm slide or as a 17" x 23" black and white photographic print for an additional charge.

Synopsis of Poaceae in the grassland formations of the Parque Estadual do Guartelá, Paraná State, Brazil

“…In the same way, the species study here belonging to the genera Danthonia, Eriochrysis, Hymenachne, Hyparrhenia, Otachyrium, Steinchisma and Trichanthecium were collected in wet sandy soil, as described by Sendulsky & Soderstrom (1984), Santos & Boechat (1989), , Welker (2011) and Zuloaga et al (2011). The species of the genera Andropogon, Eragrostis, Paspalum and Sorghastrum, study here and by others authors (Davila 1988, Boechat & Longhi-Wagner 2001, Zuloaga & Morrone 2005, Zanin & Longhi-Wagner 2011, were found in both drained and wet soils.…”

“…The individuals collected were processed (Bridson & Forman 2004) and deposited in the UNOP and FLOR herbaria (Thiers, continuously updated). The identification of the specimens was performed using specialized literature (Boldrini 1976, Sendulsky 1978, Sendulsky & Soderstrom 1984, Davila 1988, Santos & Boechat 1989, Flores & Valls 1992, Boechat & Longhi-Wagner 1995, Longhi-Wagner 1999, Guglieri & Longhi-Wagner 2000, Boechat & Longhi-Wagner 2001, Zuloaga & Morrone 2005, Zanin & Longhi-Wagner 2011, Welker & Longhi-Wagner 2012 and by comparison with specimens in the herbaria MBM (Thiers, continuously updated). The spelling of the names follows the Lista de Espécies da Flora do Brasil (Flora do Brasil 2016) and the World Checklist of Selected Plant Families (WCSP 2016).…”

Intraspecific Chromosome Number Variation and Prairie Restoration—A Case Study in Northeast Iowa, U.S.A

“…Panicum virgatum in restorations was typically 8x (Table 2). A specimen labeled as Sorghastrum nutans (Indian grass) from one restoration seed source was 2x, while plants found in remnants and reconstructions were likely 4x as were local ecotype seeds (Table 2); all prior samples from North America had chromosome counts of 2 N = 40 (Dávila 1988). Amorpha canescens (lead plant) was not previously known to have intraspecific chromosome number variation (2 N = 20; Löve & Löve 1982), but remnant plants and local ecotype seeds appear to be 4x while commercially available seeds were likely 2x (Table 2).…”