Specimens
Rhododendron periclymenoides (Michx.) Shinners, Gordon C. Tucker
Salix humilis var. humilis Marsh., Gordon C. Tucker
Sedum L., Gordon C. Tucker
Silene noctiflora L., Gordon C. Tucker
Sisymbrium altissimum L., Gordon C. Tucker
Trifolium campestre Schreb., Gordon C. Tucker
Tropaeolum majus L., Gordon C. Tucker
Wisteria sinensis (Sims) DC., Gordon C. Tucker
Amorpha fruticosa L., Gordon C. Tucker and Edwin H. Horning
Barbarea verna (Mill.) Asch., Gordon C. Tucker and Edwin H. Horning
Bromus japonicus Thunb. ex Murr., Gordon C. Tucker and Edwin H. Horning
Carex canescens L., Gordon C. Tucker and Edwin H. Horning
Carex silicea Olney, Gordon C. Tucker and Edwin H. Horning
Cornus foemina subsp. racemosa (Lam.) J.S. Wilson, Gordon C. Tucker and Edwin H. Horning
Dichanthelium acuminatum (Sw.) Gould & C.A. Clark, Gordon C. Tucker and Edwin H. Horning
Dichanthelium acuminatum (Sw.) Gould & C.A. Clark, Gordon C. Tucker and Edwin H. Horning
Dryopteris carthusiana (Vill.) H.P.Fuchs, Gordon C. Tucker and Edwin H. Horning
Galium tinctorium (L.) Scop., Gordon C. Tucker and Edwin H. Horning
Iris versicolor L., Gordon C. Tucker and Edwin H. Horning
Lepidium virginicum L., Gordon C. Tucker and Edwin H. Horning
Panicum lanuginosum Ell., non Bosc ex Spreng., Gordon C. Tucker and Edwin H. Horning
Phalaris canariensis L., Gordon C. Tucker and Edwin H. Horning
Polygonum lapathifolium L., Gordon C. Tucker and Edwin H. Horning
Pteridium aquilinum (L.) Kuhn, Gordon C. Tucker and Edwin H. Horning
Salvia reflexa Hornem., Gordon C. Tucker and Edwin H. Horning
Verbascum phlomoides L., Gordon C. Tucker and Edwin H. Horning
Vulpia myuros (L.) C. C. Gmel., Gordon C. Tucker and Edwin H. Horning
Cornus amomum Mill., Gordon C. Tucker and Edwin H. Horning
Dryopteris carthusiana (Vill.) H.P.Fuchs, Gordon C. Tucker and Edwin H. Horning
Eragrostis curvula (Schrad.) Nees, Gordon C. Tucker and Edwin H. Horning
Juniperus virginiana L., Gordon C. Tucker and Edwin H. Horning
Quercus robur L., Gordon C. Tucker and Edwin H. Horning
Rubus strigosus Michx., Gordon C. Tucker and Edwin H. Horning
Viburnum setigerum Hance, Gordon C. Tucker and Edwin H. Horning
Vitis aestivalis F.Michx., Gordon C. Tucker and Edwin H. Horning
Acalypha gracilens A. Gray, Gordon C. Tucker and Edwin H. Horning
Cyperus iria L., Gordon C. Tucker and Edwin H. Horning
Echinochloa crusgalli , Gordon C. Tucker and Edwin H. Horning
Eragrostis pectinacea (Michx.) Nees ex Steud., Gordon C. Tucker and Edwin H. Horning
Juncus acuminatus Michx., Gordon C. Tucker and Edwin H. Horning
Juncus bufonius L., Gordon C. Tucker and Edwin H. Horning
Penthorum sedoides L., Gordon C. Tucker and Edwin H. Horning
Physalis philadelphica Lam., Gordon C. Tucker and Edwin H. Horning
Potentilla norvegica L., Gordon C. Tucker and Edwin H. Horning
Agrimonia gryposepala Wallr., Gordon C. Tucker and Edwin H. Horning
Agrostis scabra Willd., Gordon C. Tucker and Edwin H. Horning
Amaranthus retroflexus L., Gordon C. Tucker and Edwin H. Horning
Berberis vulgaris L., Gordon C. Tucker and Edwin H. Horning
Centaurea cyanus L., Gordon C. Tucker and Edwin H. Horning
Coreopsis tinctoria Nutt., Gordon C. Tucker and Edwin H. Horning
Eleocharis halophila (Fernald & Brack.) Fernald & Brack., Gordon C. Tucker and Edwin H. Horning
Eragrostis pectinacea (Michx.) Nees ex Steud., Gordon C. Tucker and Edwin H. Horning
Galium obtusum Bigelow, Gordon C. Tucker and Edwin H. Horning
Juncus anthelatus (Wiegand) R.E.Brooks, Gordon C. Tucker and Edwin H. Horning
Juncus canadensis J. Gay ex Laharpe, Gordon C. Tucker and Edwin H. Horning
Juncus effusus L., Gordon C. Tucker and Edwin H. Horning
Juncus effusus L., Gordon C. Tucker and Edwin H. Horning
Juncus greenei Oakes & Tuck., Gordon C. Tucker and Edwin H. Horning
Juncus L., Gordon C. Tucker and Edwin H. Horning
Liriodendron tulipifera L., Gordon C. Tucker and Edwin H. Horning
Lysimachia ciliata L., Gordon C. Tucker and Edwin H. Horning
Mentha x gracilis , Gordon C. Tucker and Edwin H. Horning
Morus alba L., Gordon C. Tucker and Edwin H. Horning
Panicum virgatum L., Gordon C. Tucker and Edwin H. Horning
Polygonum hydropiperoides Michx., Gordon C. Tucker and Edwin H. Horning
Salix discolor Muhl., Gordon C. Tucker and Edwin H. Horning
Salvia reflexa Hornem., Gordon C. Tucker and Edwin H. Horning
Teucrium canadense L., Gordon C. Tucker and Edwin H. Horning
Thuja , Gordon C. Tucker and Daniel M. Tucker
Agrostis gigantea Roth, Gordon C. Tucker and Edwin H. Horning
Albizia julibrissin Durazz., Gordon C. Tucker and Edwin H. Horning
Amaranthus powellii S. Wats., Gordon C. Tucker and Edwin H. Horning
Amaranthus retroflexus L., Gordon C. Tucker and Edwin H. Horning
Chenopodium pumilio R. Br., Gordon C. Tucker and Edwin H. Horning
Chenopodium rubrum L., Gordon C. Tucker and Edwin H. Horning
Diplotaxis tenuifolia (L.) Dc., Gordon C. Tucker and Edwin H. Horning
Dryopteris carthusiana (Vill.) H.P.Fuchs, Gordon C. Tucker and Edwin H. Horning
Elymus virginicus var. jejunus (Ramaley) Bush, Gordon C. Tucker and Edwin H. Horning
Eragrostis cilianensis (All.) Vign. ex Janchen, Gordon C. Tucker and Edwin H. Horning
Eragrostis minor Host, Gordon C. Tucker and Edwin H. Horning
Festuca rubra L., Gordon C. Tucker and Edwin H. Horning
Galeopsis bifida Boenn., Gordon C. Tucker and Edwin H. Horning
Geum canadense Jacq., Gordon C. Tucker and Edwin H. Horning
Mentha canadensis L., Gordon C. Tucker and Edwin H. Horning
Plantago aristata Michx., Gordon C. Tucker and Edwin H. Horning
Potentilla recta Nutt., Gordon C. Tucker and Edwin H. Horning
Rhododendron viscosum Torr., Gordon C. Tucker and Edwin H. Horning
Salicornia europaea L., Gordon C. Tucker and Edwin H. Horning
Tilia , Gordon C. Tucker and Edwin H. Horning
Arenaria serpyllifolia L., Gordon C. Tucker and Edwin H. Horning
Cirsium arvense (L.) Scop., Gordon C. Tucker and Edwin H. Horning
Cornus florida L., Gordon C. Tucker and Edwin H. Horning
Coronopus didymus (L.) Sm., Gordon C. Tucker and Edwin H. Horning
Crataegus crus-galli L., Gordon C. Tucker and Edwin H. Horning
Cynanchum nigrum Cav., Gordon C. Tucker and Edwin H. Horning
Deutzia scabra Thunb., Gordon C. Tucker and Edwin H. Horning
Dryopteris carthusiana (Vill.) H.P.Fuchs, Gordon C. Tucker and Edwin H. Horning
Enkianthus campanulatus (Miq.) G. Nicholson, Gordon C. Tucker and Edwin H. Horning
Exochorda racemosa (Lindl.) Rehder, Gordon C. Tucker and Edwin H. Horning
Ilex verticillata A.Gray, Gordon C. Tucker and Edwin H. Horning
