| 词条 | Ulmus americana 'Vase' |
| 释义 |
| name = Ulmus americana 'Vase' | species = Ulmus americana | cultivar = 'Vase' | origin = US }} The putative American Elm cultivar Ulmus americana 'Vase' was listed in Edition 5 of the 1949 Plant Buyers Guide.[1] No details of provenance are available, and its status as a true cultivar is uncertain. Green regarded the tree as "..neither clonal nor a true cultivar".[2] The tree features in the Plumfield Nurseries wholesale trade list of 1931, but without description or provenance.[3] DescriptionNot available. CultivationIt is not known whether 'Vase' remains in cultivation in the United States, nor whether it was cultivated elsewhere. Synonymy
References1. ^Steffek, E. F. (Ed.)(1949) Plant buyers guide of seed and plant materials in the trade. Edition 5, 1949. Massachusetts Horticultural Society, Boston. {{Elm species, varieties, hybrids, hybrid cultivars and species cultivars |state=collapsed}}2. ^{{cite journal |last=Green |first=Peter Shaw |authorlink=Peter Shaw Green |date=1964 |title=Registration of cultivar names in Ulmus|url=https://archive.org/stream/arnoldiaarno_21#page/40/mode/2up/|journal=Arnoldia |volume=24|pages=41–80 |number=6–8 |publisher=Arnold Arboretum, Harvard University |access-date=16 February 2017}} 3. ^Moffet, L. A. The Plumfield Nurseries, Wholesale Trade List, Spring 1931. Plumfield Nurseries, Fremont, Nebraska. 3 : American elm cultivar|Ulmus articles missing images|Ulmus |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。