The title and author of Duane Isely and F.J. Peabody’s paper on the front cover of Castanea, Vol. 49, December 1984 should read: “Robinia (Leguminosae: Papilionoideae)” by Duane Isely and F.J. Peabody.
The title and author of Duane Isely and F.J. Peabody’s paper on the front cover of Castanea, Vol. 49, December 1984 should read: “Robinia (Leguminosae: Papilionoideae)” by Duane Isely and F.J. Peabody.
Geranium bicknellii Britt. was added to the indigenous Ohio flora based on a 1929 specimen from the Oak Openings of Lucas County, northwestern Ohio (Cooperrider 1982). McCready and Cooperrider (1984) reported a 1916 collection from Wood County, and Cooperrider (pers. comm.) has seen specimens collected in Erie and Lorain Counties in the 1880’s. The species was presumed extirpated until June 1984, when I found a single plant of the species on a parcel adjacent to The Nature Conservancy’s Schwamberger/Kitty Todd Memorial Preserve in Lucas County
Bear oak (Quercus ilicifolia Wang.) is a common shrub or small tree in the mid-Atlantic states where it generally grows on acid, rocky or sandy, sterile soils (Wolgast 1974). Bear oak extends south from Maine to its southern limit in North Carolina where there are five small populations. These are located in the western Piedmont physiographic province on peaks of low mountains, with elevations of 460-760 m. Fortunately, four out of the five populations in North Carolina are in state parks where the species can be protected and managed; the fifth population is in an area slated for addition to a state park. Bear oak is recognized as a threatened, peripheral species in North Carolina (Hardin 1977) although it is not legally protected.
C.H. Jones’ (1943) publication on the rare plants of Ohio (Castanea 8:81-108) is believed to be the first comprehensive list of rare plants for any state (R.L. Stuckey. 1982. Ohio Biol. Surv. Biol. Notes No. 16:5-9). The book under review is the second recent publication on the endangered (E) and threatened (T) plants of Ohio.
From cover: Joseph Siry carefully traces the interplay among scientific knowledge, popular values, legal frameworks, and public policy in the development of a wetlands ecological ethic.
Floristic data, keys to identification, and dot distribution maps are presented for Thaspium barbinode, T. trifoliatum, Zizia aptera, and Z. aurea. Two varieties are accepted within T. trifoliatum: var. trifoliatum known from only two collections in the state, and var. flavum which is common. Thaspium pinnatifidum, long attributed to Ohio, is excluded from the known flora; all specimens so determined proved to be misidentified forms of T. barbinode.
The status of Boltonia decurrens (Torr. & Gray) Wood as a distinct species is strengthened by consideration of its lack of rhizomes as compared to B. asterioides (L.) L’Her var. recognita (T. & G.) Engelm. Boltonia decurrens reproduces asexually by basal shoots in addition to its seed production. Historically, B. decurrens has been limited to moist habitats along a 400 km stretch of the Illinois and Mississippi rivers in Illinois and Missouri. At present, seven populations are known from a 37 km reach of the middle Illinois River. All of the surviving populations are in man-disturbed habitats. The species is in danger of becoming extinct.
Authors Maxwell and Baker have given a good account of the development and growth of a significant industry in the State of Texas.
The breeding system of an Ohio population of Synandra hispidula was investigated. Flowering individuals were subjected to four pollination regimes: 1) isolation inside insect exclosures without further manipulation; 2) self-pollination by hand in a pollinator-free environment; 3) excision of anthers in a pollinator-free environment; 4) open-pollination (control). Regimes 2 and 4 yielded over 80% seed set and did not differ significantly, regime 1 yielded 46% seed set, and regime 3 resulted in no seed production. Synandra is self-compatible and capable of spontaneous autogamy. The rarity of this monotypic genus is not likely the result of poor pollination.
Occasionally a book of superior merit is published. This is such a book. It covers the approximately 2255 species of native and introduced herbaceous plants growing in Maryland and culminates many years of classroom, field, herbarium, and library research by the authors.