Castanea Archives

Castanea Subscribers and members of the Southern Appalachian Botanical Society may read or download any articles published in Castanea.

Articles from 2008 to present (Volumes 75 to 88) are available directly from our archives.

Members and Subscribers can access older Castanea articles via our JSTOR Portal without a JSTOR account or logins.

Volumes 68 (2002) – Current

(BioOne access not included in SABS membership)

Volumes 1 (1937) – 80 (2015)

(JSTOR access to Castanea archives included in SABS membership)

Articles from our Current Issue

A Novel Anatomical Approach to Complement Morphological and Ecological Methods for the Identification of Some Important Coastal Graminoids

We present anatomical imaging techniques and measurements that are useful additions to the existing morphological toolbox for the identification of seven coastal grasses and one rush. Our method is simple and inexpensive and requires the removal of only one leaf, which prevents removal of plants from their habitats. This method can also be used in seasons when reproductive structures (important for current morphological ID efforts) are not present. We find significant quantitative differences in leaf width, adaxial to abaxial ratios (ADAB ratio, which we introduce as a new parameter), vascular bundle cross-sectional areas, and interveinal distances, as well as providing

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Scientific Note: Revisions in a Collection of Plant Fossils from the Middle Pennsylvanian Age Mazon Creek Locality (Illinois) at the North Carolina Museum of Natural Sciences

We evaluated an assemblage of 235 plant fossil specimens from the well-known Middle Pennsylvanian Mazon Creek locality accessioned into the Paleontology Collections of the North Carolina Museum of Natural Sciences (Raleigh). The specimens are preserved as siderite nodules, common to the Mazon Creek biota. All but three of the specimens were donated by Mr. George Oliver, and were found at a quarry near Joliet in Will County, Illinois. The collection includes pteridosperms, pteridophytes, lycophytes, equisetophytes, cordaites, and specimens of unknown affinities, and includes relatively rare specimens of Codonotheca caudua and Cordaianthus ovata. Forty-four previously unidentified specimens were identified to genus

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Noteworthy Collections: First Record of a Natural Hybrid Between Phlox divaricata ssp. laphamii (Alph. Wood) Wherry and Phlox pilosa ssp. sangamonensis (Levin & D.M. Sm.)

Phlox pilosa ssp. sangamonensis is a state-endangered and narrowly endemic taxon only found in Champaign and Piatt counties, Illinois. Here, we present evidence of natural hybridization between Phlox divaricata ssp. laphamii and P. pilosa ssp. sangamonensis. In May 2018, we collected a putative F1 hybrid of the two taxa in a sympatric population. We screened six microsatellites developed for North American Phlox species and measured eight morphological traits to test the specimen’s hybrid status. The microsatellite data were analyzed using a Bayesian clustering technique to infer genetic groupings. The eight morphological characteristics were analyzed using principal components analysis. We also

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Developing a 3D Digitization Protocol at the Marshall University Herbarium Using Free, Open-source 3D Reconstruction Software

Herbarium specimen digitization and transcription initiatives have led to revitalized use of plant collections making them more accessible than ever. Most digitization is done by producing 2D images of herbarium sheets; however, herbaria also include 3D collections such as fungi, mosses, and dry fruits, among others. Here we present a 3D digitization protocol developed at the Marshall University Herbarium (MUHW) using free photogrammetry software. We tested four freely available software applications, Meshroom, 3DF Zephyr Free, ColMap, and Regard3D on five types of 3D specimens, fungi, a moss, a lichen, a pinecone, and a compound fruit. Using 40–50 images and equipment

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Scientific Note: Neotypification of Ptelea mollis M.A. Curtis (Rutaceae)

Ptelea trifoliata L. (Rutaceae), in the sense of Bailey (1962) and Skornia et al. (2016), is a woody, understory species native to the southeastern and midwestern regions of the United States, as well as Mexico. It is one of two species initially described in Ptelea L. by Linnaeus (1753), the other being Ptelea viscosa L. [Dodonaea viscosa (L.) Jacq., Flora of China Editorial Committee 2007]. The circumscription of Ptelea in North America has been controversial, with authors variously recognizing a single species (Linnaeus 1753), three species (Bailey 1962), or 59 species (Greene 1906). Those adopting broader species circumscriptions, and thus

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