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Holotype of Corylus cornuta Marshall f. inermis Fernald [family BETULACEAE]

Holotype of Corylus cornuta Marshall f. inermis Fernald [family BETULACEAE]

Collector M. L. Fernald & H. B. Jackson, #12073
Collection Date 1915-08-28
Resource Type Specimens
Country Canada
Herbarium GH
Identifications Corylus cornuta Marshall [family BETULACEAE] (stored under name)
Holotype of Corylus cornuta Marshall f. inermis Fernald [family BETULACEAE]; Verified by Fernald, 1936
Corylus cornuta Marshall [family BETULACEAE]; 1964/03/16
Corylus cornuta Marshall f. inermis Fernald [family BETULACEAE]
Isotype of Corylus californica (A. de Candolle) Rose [family BETULACEAE]

Isotype of Corylus californica (A. de Candolle) Rose [family BETULACEAE]

Collector K. T. Hartweg, #1960
Collection Date None
Resource Type Specimens
Country United States
Herbarium GH
Identifications Corylus cornuta Marshall var. californica (A. de Candolle) Sharp [family BETULACEAE] (stored under name); Verified by J. S. Drumke
Isotype of Corylus californica (A. de Candolle) Rose [family BETULACEAE]; Verified by (A. DC.) Rose
Corylus cornuta Marshall subsp. californica (A. de Candolle) E. Murray [family CORYLACEAE]

Corylus cornuta Marshall subsp. californica (A. de Candolle) E. Murray [family CORYLACEAE]

Entry From Flora of North America, Vol 3,
Contributor Flora of North America (FNA)
Resource Type Reference Sources
Information Shrubs or trees, open-spreading, to 8(--15) m; trunks usually several. Bark dark brown to blackish. Branches ascending; twigs sparsely to moderately pubescent, bearing glandular hairs. Winter buds containing inflorescences broadly ovoid, 3--5 × 3--5 mm, apex acute. Leaves: petiole pubescent, often bearing well-developed glandular hairs. Leaf blade nearly orbiculate or broadly elliptic, 4--7 × 3.5--7 cm, leathery, base nearly cordate, margins coarsely doubly serrate, apex obtuse to acute, abaxially moderately pubescent, villous to tomentose on major veins and in vein axils. Inflorescences: staminate catkins usually in clusters of 2--3, 4--6 × 0.5--0.8 cm; peduncles mostly 5--10 mm. Nuts in clusters of 2--4; involucral tubular beak less than 2 times length of nuts, hispid. 2n = 22.
Corylus cornuta var. californica Marshall [family BETULACEAE]

Corylus cornuta var. californica Marshall [family BETULACEAE]

Collector C. Wright, #s.n.
Collection Date 1853-01-01
Resource Type Specimens
Country United States
Herbarium US
Identifications Corylus cornuta var. californica Marshall [family BETULACEAE] (stored under name)
Corylus cornuta Marshall subsp. cornuta [family CORYLACEAE]

Corylus cornuta Marshall subsp. cornuta [family CORYLACEAE]

Entry From Flora of North America, Vol 3,
Contributor Flora of North America (FNA)
Resource Type Reference Sources
Information Shrubs, open spreading, to (4--)6 m. Bark light brown, smooth. Branches ascending; twigs glabrous to sparsely pubescent, without glandular hairs. Winter buds containing inflorescences ovoid, 3--5 × 3--4 mm, apex acute. Leaves: petiole glabrous to moderately pubescent, without glandular hairs. Leaf blade ovate to obovate or narrowly elliptic, often nearly angular and lobulate near apex, 5--12 × 3.5--9 cm, base narrowly cordate to narrowly rounded, margins coarsely and often irregularly doubly serrate, apex usually distinctly acuminate; surfaces abaxially glabrous to moderately pubescent, usually pubescent on major veins and in vein axils. Inflorescences: staminate catkins usually in clusters of 2--3, 4.5--6 × 0.5--0.8 cm; peduncles mostly 0.5--2 mm. Nuts in clusters of 2--6; involucral tubular beak long, narrow, 2--3(--4) times length of nuts, densely bristly. 2n = 22, 28.
Type of Corylus cornuta Marsh. variety glandulosa Calder [family BETULACEAE]

Type of Corylus cornuta Marsh. variety glandulosa Calder [family BETULACEAE]

Collector J. A. Calder|K. T. MacKay, #31517
Collection Date 1961-07-16
Resource Type Specimens
Country Canada
Herbarium DAO
Identifications not on sheet of Corylus cornuta Marsh. variety californica Marsh. [family BETULACEAE] (stored under name); Verified by J. A. Calder|K. T. MacKay, 1961/07/16
Type of Corylus cornuta Marsh. variety glandulosa Calder [family BETULACEAE]; Verified by B. Boivin, 1964
Holotype of not on sheet [family NOT ON SHEET]; Verified by Indee Ranasinghe, 2013/11/06
not on sheet of Corylus rostrata Ait. variety tracyi Jeps. [family BETULACEAE]

not on sheet of Corylus rostrata Ait. variety tracyi Jeps. [family BETULACEAE]

Collector Joseph P. Tracy, #17639
Collection Date 1946-08-25
Resource Type Specimens
Country United States
Herbarium DAO
Identifications not on sheet of Corylus rostrata Ait. variety tracyi Jeps. [family BETULACEAE] (stored under name); Verified by Joseph P. Tracy, 1946/08/25
not on sheet of Corylus cornuta Marshall variety californica (A. de Candolle) Sharp [family BETULACEAE]; Verified by John S. Drumke, 1964/04/03
not on sheet of not on sheet [family NOT ON SHEET]; Verified by Indee Ranasinghe, 2013/11/06
Corylus cornuta Marshall [family CORYLACEAE]

Corylus cornuta Marshall [family CORYLACEAE]

Entry From Flora of North America, Vol 3,
Contributor Flora of North America (FNA)
Resource Type Reference Sources
Information Shrubs or trees, open-spreading, 4--8(--15) m. Bark light to dark brown, smooth. Branches ascending; twigs glabrous to sparsely pubescent, sometimes with glandular hairs. Winter buds containing inflorescences ovoid, 3--5 × 3--4 mm, acute. Leaves: petiole glabrous to moderately pubescent, with or without glandular hairs. Leaf blade nearly orbiculate to narrowly ovate or ovate-oblong, often nearly angular and slightly lobulate near apex, 4--10 × 3.5--12 cm, thin to leathery, base narrowly cordate to narrowly rounded, margins coarsely and often irregularly doubly serrate, apex obtuse to acute or acuminate; surfaces abaxially glabrous to moderately pubescent, usually pubescent on major veins and in vein axils. Inflorescences: staminate catkins lateral along branchlets on short shoots, usually in clusters of 2--3, 4--6 × 0.5--0.8 cm; peduncles 0.5--10 mm. Nuts in clusters of 2--6, completely concealed; bracts bristly, connate at summit, lengthened into extended tubular beak.
Corylus [family CORYLACEAE]

Corylus [family CORYLACEAE]

Entry From Flora of North America, Vol 3,
Contributor Flora of North America (FNA)
Resource Type Reference Sources
Information Shrubs and trees, 3--15 m; tree trunks usually 1, branching mostly deliquescent, trunks and branches terete. Bark grayish brown, thin, smooth, close, breaking into vertical strips and scales in age; prominent lenticels absent. Wood nearly white to light brown, moderately hard, heavy, texture fine. Branches, branchlets, and twigs nearly 2-ranked to diffuse; young twigs differentiated into long and short shoots. Winter buds sessile, broadly ovoid, apex acute; scales several, imbricate, smooth. Leaves on long and short shoots, 2-ranked. Leaf blade broadly ovate with 8 or fewer pairs of lateral veins, 4--12 × 3.5--12 cm, thin, bases often cordate, margins doubly serrate, apex occasionally nearly lobed; surfaces abaxially usually pubescent, sometimes glandular. Inflorescences: staminate catkins on short shoots lateral on branchlets, in numerous racemose clusters, formed previous growing season and exposed during winter, expanding well before leaves; pistillate catkins distal to staminate catkins, in small clusters of flowers and bracts, reduced, only styles protruding from buds containing them at anthesis, expanding at same time as staminate. Staminate flowers in catkins 3 per scale, congested; stamens 4, divided nearly to base to form 8 half-stamens; filaments very short, adnate with 2 bractlets to bract. Pistillate flowers 2 per bract. Infructescences compact clusters of several fruits, each subtended and surrounded by involucre of bracts, bracts 2, hairy [spiny], expanded, foliaceous, sometimes connate into short to elongate tube. Fruits relatively thin-walled nuts, nearly globose to ovoid, somewhat laterally compressed, longitudinally ribbed. x = 11.
Isotype of Prunus x pugetensis A.L. Jacobson & Zika [family ROSACEAE]

Isotype of Prunus x pugetensis A.L. Jacobson & Zika [family ROSACEAE]

Collector Peter F. Zika, #18302
Collection Date 2003-05-04
Resource Type Specimens
Country United States
Herbarium V
Identifications Isotype of Prunus x pugetensis A.L. Jacobson & Zika [family ROSACEAE] (stored under name); Verified by Peter F. Zika, 2003/05
Isotype of Prunus ×pugetensis A.L. Jacobson & Zika [family ROSACEAE]

Isotype of Prunus ×pugetensis A.L. Jacobson & Zika [family ROSACEAE]

Collector Peter F. Zika, #18302
Collection Date 2003-05-04
Resource Type Specimens
Country United States
Herbarium DAO
Identifications Isotype of Prunus ×pugetensis A.L. Jacobson & Zika [family ROSACEAE] (stored under name); Verified by Peter F. Zika, 2003/05/04
Holotype of Prunus ×pugetensis A. L. Jacobson & P. F. Zika [family ROSACEAE]

Holotype of Prunus ×pugetensis A. L. Jacobson & P. F. Zika [family ROSACEAE]

Collector Peter F. Zika, #18302
Collection Date 2003-05-04
Resource Type Specimens
Country United States
Herbarium WTU
Identifications Holotype of Prunus ×pugetensis A. L. Jacobson & P. F. Zika [family ROSACEAE] (stored under name)
Isotype of Prunus ×pugetensis A. L. Jacobson & P. F. Zika [family ROSACEAE]

Isotype of Prunus ×pugetensis A. L. Jacobson & P. F. Zika [family ROSACEAE]

Collector Peter F. Zika, #18302
Collection Date 2003-05-04
Resource Type Specimens
Country United States
Herbarium WTU
Identifications Isotype of Prunus ×pugetensis A. L. Jacobson & P. F. Zika [family ROSACEAE] (stored under name)
Filed as Prunus x pugetensis Jacobson & Zika [family ROSACEAE]

Filed as Prunus x pugetensis Jacobson & Zika [family ROSACEAE]

Collector Peter F. Zika, #18302
Collection Date 2003-05-04
Resource Type Specimens
Country United States
Herbarium UBC
Identifications Prunus x pugetensis Jacobson & Zika [family ROSACEAE] (stored under name); Verified by A.L. Jacobson; Peter F. Zika
Isotype of Prunus ×pugetensis Jacobson & Zika [family ROSACEAE]

Isotype of Prunus ×pugetensis Jacobson & Zika [family ROSACEAE]

Collector Zika, Peter F., #18302
Collection Date 2003-05-04
Resource Type Specimens
Country United States
Herbarium RM
Identifications Isotype of Prunus ×pugetensis Jacobson & Zika [family ROSACEAE] (stored under name)
Isotype of Prunus ×pugetensis Jacobson & Zika [family ROSACEAE]

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