Details for: PI 541192, Pyrus communis L., 'Frederick Clapp'

Summary Data

Taxonomy:

Pyrus communis L.

Cultivar:

'Frederick Clapp'

Origin:

Developed – Massachusetts, United States

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

21 Feb 1981

Improvement Status:

Cultivar

Form Received:

Plant

Life Form:

Tree

Life Habit:

Tree

Availability

This accession is not available. Contact site for status.

National Clonal Germplasm Repository

Request are accepted Sept. 1st - Nov. 30th; Ships Jan.- Mar.

Images (6 total. Click on image for more.)

Core Passport Data

Taxonomy:

Pyrus communis L.

Cultivar:

'Frederick Clapp'

Origin:

Developed – Massachusetts, United States

Maintained:

National Clonal Germplasm Repository

Received by NPGS:

21 Feb 1981

Improvement Status:

Cultivar

Form Received:

Plant

Life Form:

Tree

Life Habit:

Tree

Source History

Developed

1870.
Massachusetts, United States
Comment: Cultivar originated in 1870
Developer(s):

Clapp, Lemuel

Donated

21 February 1981.
Oregon, United States
Comment: Received from collection at Medford, OR to NCGR-Corvallis
Donor(s):

Lombard, Porter, Oregon State University

Accession Names and Identifiers

'Frederick Clapp'

Type: Cultivar name

Clapp, Lemuel

CPYR 236

Type: Site identifier

Group: LOCAL

Corvallis local number

EUROPEAN CULTIVAR

Type: Site identifier

Group: CROPTYPE

Narrative

Raised by Lemuel Clapp of Dorchester, Massachusetts, about 1870. Believed to be a cross between Urbaniste and Beurre Superfin. Added to A.P.S. catalog list in 1877. Fruit medium or larger in size, roundish or obovate in form, somewhat irregular in both size and form. Skin very smooth, waxy, free of blemish, clear straw -yellow in color, very attractive. Flesh fine, melting, juicy, quite free of grit. Spicy, acidulous flavor, rates high in quality during some seasons but only fair in quality a other times. Holds up well after ripening but is susceptible to Anjou scald after cold storage. Midseason. Tree vigorous, productive, one of the best in the pear kingdom. Fairly susceptible to blight. -- H. Hartman, 1957

Pyrus communis L.

Genus:

Pyrus

Section:

Pyrus

Family:

Rosaceae

Subfamily:

Amygdaloideae

Tribe:

Maleae

Subtribe:

Malinae

Nomen number:

30474

Place of publication:

Sp. pl. 1:479, 2:1200. 1753

Protologue link:

https://biodiversitylibrary.org/page/358498

Comment:

probably of hybrid origin

Typification:

View in Linnean Typification Project

Verified:

07/07/2011 by ARS Systematic Botanists.

Other conspecific taxa

Pyrus communis L. subsp. caucasica (Fed.) Browicz (77 active accession[s])
Pyrus communis L. subsp. communis (39 active accession[s])
Pyrus communis L. subsp. pyraster (L.) Ehrh. (113 active accession[s])

Autonyms (not in current use), synonyms and invalid designations

Heterotypic Synonym(s)
Pyrus asiae-mediae (Popov) Maleev
Pyrus balansae Decne.
Pyrus bourgaeana Decne.
Pyrus communis L. subsp. bourgaeana (Decne.) Nyman
Pyrus communis L. var. mariana Willk.
Pyrus domestica Medik.
Pyrus elata Rubtzov
Pyrus medvedevii Rubtzov

Common names

Language	Name	note	seq	Citation
English	pear		1	Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
French	poirier		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
German	Birnbaum		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
German	Birne		2	Reichel, S. 1998. pers. comm. Note: re. German common names
German	Birnenbaum		2	Reichel, S. 1998. pers. comm. Note: re. German common names
Italian	pera		2	Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6
Italian	pero		2	Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6
Japanese Rōmaji	seiyō-nashi		2	Ohwi, J. 1965. Flora of Japan (Engl. ed.).
Portuguese	pereira		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
Spanish	pera		2	Hanelt, P., ed. 2001. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6
Spanish	peral		2	Rehm, S. 1994. Multilingual dictionary of agronomic plants
Swedish	päron		2	Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
Transcribed Chinese	xi yang li	as Pyrus communis var. sativa	2	Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). Note: = Pyrus communis var. sativa
Transcribed Korean	byeongbaenamu		2	Mun-Chan, B. et al. 1986. A checklist of the Korean cultivated plants. Kulturpflanze 34:122.

Annotations

Observations

Phenotype Data

Category	Descriptor	Description	Value	Study	Inventory	Availability
CYTOLOGIC	PLOIDY LEVEL	Number of sets of chromosomes.	2x - diploid	PYRUS.PLOIDY.2013	CPYR 236 .002 PL	Not Available
DISEASE	FRUIT_SCAB	RATING OF DAMAGE CAUSED BY FRUIT SCAB	1 - NO DAMAGE	PYRUS.CORVALLIS.1988		Not Available
DISEASE	FRUIT_SCAB	RATING OF DAMAGE CAUSED BY FRUIT SCAB	4 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)	PYRUS.CORVALLIS.2005.FRUITSCAB	CPYR 236 .002 PL	Not Available
DISEASE	PSEUDOMONAS	RATING OF DAMAGE CAUSED BY PSEUDOMONAS	5 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)	PYRUS.CORVALLIS.1988		Not Available
DISEASE	RUST	RATING OF DAMAGE CAUSED BY RUST	1 - NO DAMAGE	PYRUS.CORVALLIS.1986		Not Available
INSECT	BLISTER_MITES	RATING OF DAMAGE CAUSED BY BLISTER MITES	3 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)	PYRUS.CORVALLIS.1986		Not Available
INSECT	BLISTER_MITES	RATING OF DAMAGE CAUSED BY BLISTER MITES	5 - (1 = NO DAMAGE, 9 = SEVERE DAMAGE)	PYRUS.CORVALLIS.1986		Not Available
MORPHOLOGY	PEDICEL_ATTACHMENT	PEDICEL ATTACHMENT	U - SUNKEN	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CAVITY	CAVITY	AS - ACUTE SHALLOW	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CALYX	CALYX	P - PERSISTANT	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CALYX_BASIN	CALYX BASIN	OS - OBTUSE SHALLOW	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	GROUND_COLOR	GROUND COLOR	Y - YELLOW	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	OVER_COLOR	OVERCOLOR	N - NONE	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	RUSSET	AMOUNT OF RUSSETING	5 - (1 = NONE, 9 = COMPLETELY RUSSETED)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	RUSSET_LOCATION	LOCATION OF RUSSETING	B - BLUSH SIDE	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	RUSSET_LOCATION	LOCATION OF RUSSETING	C - CALYX END	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	LENTICELS	NUMBER OF LENTICELS	1 - FEW	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	LENTICEL_SIZE	SIZE OF LENTICELS	1 - SMALL	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	DOTS	DOTS	O - OBSCURE	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLESH_COLOR	FLESH COLOR	Y - YELLOW	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLESH_TEXTURE	FLESH TEXTURE	5 - (1 = FINE, 9 = COARSE)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	TEXTURE_TYPE	FLESH TEXTURE TYPE	B - BUTTERY	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	TEXTURE_TYPE	FLESH TEXTURE TYPE	J - JUICY	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FRUITCORE	CORE	M - MEDIAN	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CARPEL_NUMBER	NUMBER OF CARPELS	5	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	GRIT	NUMBER OF STONE CELLS	1 - NO STONE CELLS	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	CORE_BREAKDOWN	DEGREE OF CORE BREAKDOWN, DETERMINED ON TREE RIPENED FRUIT	1 - NONE	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	OXIDATION	OXIDATION OF CUT MEASURED AFTER 5 MINUTES	1 - NONE	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLAVOR	FLAVOR OF FRUIT FLESH	P - SPICY	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	FLAVOR	FLAVOR OF FRUIT FLESH	S - SWEET	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	QUALITY	QUALITY OF FRUIT FLESH A COMBINATION OF FLAVOR, TEXTURE AND AROMA	7 - (1 = POOR, 9 = EXCELLENT)	PYRUS.CORVALLIS.STD		Not Available
MORPHOLOGY	BLOOM_DENSITY	BLOOM DENSITY	1 - LOW	PYRUS.CORVALLIS.1987		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	87	PYRUS.CORVALLIS.1986		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	90	PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	92	PYRUS.CORVALLIS.1987		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	96	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	FIRST_BLOOM	JULIAN DATE OF FIRST BLOOM	98	PYRUS.CORVALLIS.1989		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	102	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	106	PYRUS.CORVALLIS.1989		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	92	PYRUS.CORVALLIS.1987		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	96	PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	FULL_BLOOM	JULIAN DATE OF FULL BLOOM	97	PYRUS.CORVALLIS.1987		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	107	PYRUS.CORVALLIS.1987		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	108	PYRUS.CORVALLIS.1987		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	108	PYRUS.CORVALLIS.1990		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	110	PYRUS.CORVALLIS.1989		Not Available
PHENOLOGY	LAST_BLOOM	JULIAN DATE OF LAST BLOOM	111	PYRUS.CORVALLIS.1988		Not Available
PHENOLOGY	FULL_RIPE	JULIAN DATE OF FULL RIPE FRUIT	269	PYRUS.CORVALLIS.1990		Not Available
PRODUCTION	PRECOCITY	NUMBER OF YEARS FROM PLANTING TO FIRST FRUIT	2	PYRUS.CORVALLIS.1986		Not Available