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Inside Back Cover 封三

IF 0.2 4区生物学

Rhodora Pub Date : 2021-04-26 DOI: 10.1039/c9sc90014d

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Inside Back Cover 封三

IF 0.2 4区生物学

Rhodora Pub Date : 2021-04-21 DOI: 10.1039/c9tc90175b

引用次数: 0

Correction 修正

IF 0.2 4区生物学

Rhodora Pub Date : 2020-12-23 DOI: 10.3119/0035-4902-122.990.118

I. Andricioaei

引用次数: 0

Richard “Dick” Fralick (1937–2019) Richard“Dick”Fralick（1937–2019）

IF 0.2 4区生物学

Rhodora Pub Date : 2020-12-23 DOI: 10.3119/0035-4902-122.990.119

C. B. Hellquist

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Korean Mountain Ash (Sorbus alnifolia, Rosaceae) on Great Blue Hill in Canton, Massachusetts 马萨诸塞州坎顿市大蓝山上的朝鲜山灰（山梨属，蔷薇科）

IF 0.2 4区生物学

Rhodora Pub Date : 2020-12-11 DOI: 10.3119/20-06

B. Connolly, M. Brand

{"title":"Korean Mountain Ash (Sorbus alnifolia, Rosaceae) on Great Blue Hill in Canton, Massachusetts","authors":"B. Connolly, M. Brand","doi":"10.3119/20-06","DOIUrl":"https://doi.org/10.3119/20-06","url":null,"abstract":"In 2011 while walking to the top of Great Blue Hill in Canton, Massachusetts, the first author found a small tree approximately 2–3 m tall. The leaves of the tree were alternate with doubly serrate margins, somewhat reminiscent of beech or birch but not matching either genus. The bark of the tree displayed prominent lenticels. The tree could not be identified using any of the floras of the region. While conducting research in Harvard’s Arnold Arboretum, the first author noticed that the tree on Great Blue Hill morphologically matched planted specimens of Sorbus alnifolia (Siebold & Zucc.) K. Koch and also fit the description of the species in Dirr (2009). Eight years later, on November 1, 2019, the Great Blue Hill site was revisited, the tree was found still extant and healthy, a specimen was collected, and a twig was brought to the second author, who confirmed the identification. The S. alnifolia occurs on the path from the Blue Hills Trailside Museum to the summit of Great Blue Hill and the Eliot Tower at approximately 4281301.82 00 N, 7180657.85 00 W. The location of this plant seems entirely natural and the S. alnifolia did not appear planted. The Korean mountain ash co-occurs with Pinus strobus L., Vaccinium angustifolium Ait., Acer rubrum L., Comptonia peregrina (L.) Coult., and Betula lenta L. This collection of Sorbus alnifolia is the first record of the tree in Norfolk Co., Massachusetts, and the only occurrence in North America known outside of Boston, Suffolk Co., Massachusetts, in the wild (Cullina et al. 2011). USDA, NRCS (2019) and other continent-wide references do not report the species as naturalized.","PeriodicalId":54454,"journal":{"name":"Rhodora","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2020-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43304488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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A Likely Pyrus ×Calleryana × Communis (Rosaceae) Hybrid Found in Connecticut 在康涅狄格州发现的一个可能的Pyrus×Calleyana×Communis（蔷薇科）杂交种

IF 0.2 4区生物学

Rhodora Pub Date : 2020-12-11 DOI: 10.3119/20-17

B. Connolly, Katana Boutiette

{"title":"A Likely Pyrus ×Calleryana × Communis (Rosaceae) Hybrid Found in Connecticut","authors":"B. Connolly, Katana Boutiette","doi":"10.3119/20-17","DOIUrl":"https://doi.org/10.3119/20-17","url":null,"abstract":"Pyrus 3calleryana Decne., or Callery pear, is a native of China and Korea that has been widely planted as an ornamental street tree in the eastern United States (Dirr 2009). It has become widely established as a wild species in North America, now ranging from New Hampshire to Texas, and several states consider the Callery pear an invasive plant (Natural Resources Conservation Service 2020). In New England, it has been documented in Massachusetts, Connecticut, and New Hampshire (Haines 2011). We observed in Connecticut that P. 3calleryana appeared to be more common than reported and conducted a survey to assess the species’ true range in New England. While conducting these surveys near the Buckland Hills Mall in Manchester, Connecticut, we noticed a Callery pear-like tree with large fruits. The tree was growing in an unmowed thicket with several other weedy species. Wild individuals of Callery pear are frequent around the mall and along Interstate 84 a short distance away. The large-fruited tree was approximately 3 m tall with a stem about 10 cm in diameter. The tree was quite prolific, bearing hundreds of round fruits 4–6 cm in diameter, much larger than the typical 1 cm fruits of Callery pear. Common pear, Pyrus communis L., the other species that can typically be found in Connecticut (Dreyer et al. 2013), does not have round fruits. The combination of the large size and round shape led to the conclusion that the tree was probably a hybrid of P.3calleryana and P. communis. The fruits of the likely hybrid tree were bitter and astringent and had numerous sclereids, giving the flesh a very gritty texture, traits that confirmed the Callery pear parentage. Catling and Mitrow (2014) reported that several larger-fruited specimens that appear close to P. 3calleryana are known throughout the North American range of the species and hypothesized that these individuals may be hybrids involving P. bretschneideri Rehder or P. communis. While P. communis","PeriodicalId":54454,"journal":{"name":"Rhodora","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2020-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45587976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strophostyles helvola (Fabaceae) in New Hampshire

IF 0.2 4区生物学

Rhodora Pub Date : 2020-12-11 DOI: 10.3119/20-07

W. Nichols, Celia Abrams, S. Young, Janet R. Sullivan, Pete Bowman

引用次数: 1

Vascular Plant Diversity of Forested Wetlands in Southern New England 新英格兰南部森林湿地维管植物多样性

IF 0.2 4区生物学

Rhodora Pub Date : 2020-12-11 DOI: 10.3119/19-21

Laura Green, M. Duguid

引用次数: 0

The Plant Collections of William Smith Clark (1826–1886) 威廉·史密斯·克拉克的植物收藏(1826-1886)

IF 0.2 4区生物学

Rhodora Pub Date : 2020-12-11 DOI: 10.3119/19-26

K. Searcy, Tristram G. Seidler

引用次数: 0

Interesting Botanical Finds in Exeter, New Hampshire 新罕布什尔州埃克塞特有趣的植物发现

IF 0.2 4区生物学

Rhodora Pub Date : 2020-12-11 DOI: 10.3119/20-02

W. Nichols

{"title":"Interesting Botanical Finds in Exeter, New Hampshire","authors":"W. Nichols","doi":"10.3119/20-02","DOIUrl":"https://doi.org/10.3119/20-02","url":null,"abstract":"On September 5, 2019, a naturalized occurrence of Achillea filipendulina Lam. was discovered near downtown Exeter, New Hampshire, growing on String Bridge (42.9817828N, 70.9455468W). String Bridge crosses the freshwater Exeter River just meters upstream of where the river abruptly becomes tidal and its name changes to the Squamscott River. A single plant with three fruiting stems and one flowering stem was growing out of the cement holding together stonework on the outer, east side of the bridge (Figure 1). Associates included Eutrochium dubium (Willd. ex Poir.) E. E. Lamont, Lythrum salicaria L., and Poa compressa L. This occurrence may have originated from seed in some nearby garden that washed down and was deposited in the cement crack. This is only the second known naturalized location for A. filipendulina in New England (Consortium of Northeastern Herbaria 2019); Frank C. Seymour collected a specimen in 1969 from a naturalized population in clay soil at Mill Pond, Benson, Vermont. A voucher specimen of A. filipendulina from String Bridge was collected and will be deposited at Hodgdon Herbarium (NHA), University of New Hampshire (Nichols NHB-753). Nearby in Exeter on the same date, Odontites vulgaris Moench was found growing on a town-owned dike (42.9863958N, 70.9506048W) that forms a stormwater diversion basin (Clemson Holding Pond) adjacent to the Squamscott River (Figure 2). The dike was owned by the adjacent mills (built in 1827) long before the town took ownership (P. Vlasich, Exeter Town Engineer, pers. comm.). Over 100 plants were scattered on either side of a path along the entire length of the dike (440 meters) in poor dry soil. Odontites vulgaris, an introduced annual native to Europe and Asia, is hemiparasitic on the roots of grass and herb species. The most frequent grasses on the dike were Digitaria ischaemum (Schreb.) Muhl., D. sanguinalis (L.) Scop., Eragrostis frankii C. A. Mey. ex Steud., E. spectabilis (Pursh) Steud., Poa compressa L., Schizachyrium scoparium (Michx.) Nash, and Sporobolus vaginiflorus","PeriodicalId":54454,"journal":{"name":"Rhodora","volume":null,"pages":null},"PeriodicalIF":0.2,"publicationDate":"2020-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44351876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0