Cannabaceae

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Ulmus minor 'Cretensis'
SpeciesUlmus minor
Cultivar'Cretensis'
OriginCrete

The Field Elm cultivar Ulmus minor 'Cretensis' [:from Crete] was first mentioned by Nicholson in Kew Hand-List Trees & Shrubs Vol.2 (1896), as Ulmus campestris var. cretensis, without description.[1][2] A 1908 herbarium specimen at Kew Gardens with an accompanying description[3] suggests that 'Cretensis' is not synonymous with Ulmus minor var. canescens, also present on Crete.[4][5]

Description

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On the Kew herbarium specimen Augustin Ley added the description: "All parts [of the shoots and upper leaf-surface] very glabrous and smooth; [on the leaf underside] axils and leaf-surface along mid-rib hairy; non glandular".[3] The specimen shows obovate leaves, 4 to 6 cm long by 3 to 5 wide, with a small tapering tip, biserrate or triserrate margin, and a 5 mm petiole.

Pests and diseases

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See under Ulmus minor.

Cultivation

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It is not known whether 'Cretensis' remains in cultivation. An old field elm by the 11th-century Byzantine church of St Nicholas, Kyriakosellia, Apokoronas, western Crete,[6] is in the locality where 'Cretensis' herbarium specimens were collected in the early 20th century, [7] and outside the small area in central Crete where 'Canescens' has been found.[5] Sfikas (2011), however, refers to 'Canescens' in the Apokoronas area.[4]

References

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  1. ^ Nicholson, George (1896). Hand-list of trees and shrubs. Vol. 2. p. 135.
  2. ^ Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus". Arnoldia. 24 (6–8). Arnold Arboretum, Harvard University: 41–80. Retrieved 16 February 2017.
  3. ^ a b Ulmus campestris var. cretensis herbarium specimen, Kew Gardens, herbariaunited.org specimen 289491 (1908; A. Ley)
  4. ^ a b 'Canescens' in Crete, in the Apokoronas region: George Sfikas, Trees and shrubs of Greece (Athens, 2nd ed. 2001) p.140
  5. ^ a b 'Canescens' in Crete, in the Aghia Irene gorge in the Temenos region: Natural Europe Project, University of Crete, europeana.eu [1] [2] [3]
  6. ^ "Field elm by Church of St. Nicholas, Kyriakosellia (Kiriakosellia), Crete". Google Maps. September 2011. Retrieved 2018-10-23.
  7. ^ "Specimen - P06883116". Collection: Vascular plants (P). Muséum national d’Histoire naturelle, Paris (France). Sheet labelled U. campestris (long-shoot specimen from Apokoronas, Crete, 1915)
source: https://en.wikipedia.org/wiki/Ulmus_minor_%27Cretensis%27

One thought on “Cannabaceae”

  1. Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
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