Ericaceae-Neotropical Blueberries
James L. Luteyn and Paola Pedraza-Peñalosa
The New York Botanical Garden

 

Chromosome Numbers

Home

    The following are published chromosome numbers for neotropical Ericaceae. When available, the country of origin, the collection number, and the repository herbarium acronym of the accession is shown in parenthesis; a second parenthesis cointains citations.

Agarista:   x=12 (Judd in Luteyn, 1995)

Cavendishia bracteata [called C. strobilifera]:  2n=48 (Ecuador, Argent 430, E) (Atkinson et al., 1995)
Cavendishia pubescens:  n=ca. 26 (Hunziker et al., 1985)
Cavendishia tarapotana:  2n=48 (Ecuador, Argent 422, E) (Atkinson et al., 1995)

Diogenesia amplectens:  n=24 (Argent & Brunton, 1984)

Disterigma alaternoides:  2n=>80 (Ecuador, Argent 527, E) (Atkinson et al., 1995)

Gaultheria:  n=11 (Luteyn, 1995)
Gaultheria amoena:  n=11, 2n=22 (Ecuador, Luteyn & Cotton 11153, NY) (Luteyn, 1995)
Gaultheria anastomosans:  n=11, 2n=22 (Luteyn et al. 4719, NY) (Luteyn, 1995)
Gaultheria bracteata:  n=11, 2n=22 (Peru, Luteyn & Cotton 11307, NY) (Luteyn, 1995)
Gaultheria domingensis:  2n=22 (see Hersey & Vander Kloet, 1976)
Gaultheria erecta:  n=11, 2n=22 (Luteyn & Cotton 11409, NY;  Colombia, Luteyn & Callejas 10058 "antioquiensis" form;  Ecuador, Luteyn & Cotton 10869 loxensis" form) (Luteyn, 1995)
Gaultheria eriophylla var. mucronata:  n=11, 2n=22 (Bolivia, Luteyn & Dorr 13645, NY) (Luteyn, 1995)
Gaultheria glomerata:  n=11, 2n=22 (Luteyn et al. 8006, 8790, 11109, all NY) (Luteyn, 1995); 2n=22 (Callan, 1941);  2n=22 (Middleton & Wilcock, 1990)
Gaultheria insipida:  n=11, 2n=22 (Luteyn et al. 8789, NY) (Luteyn, 1995)
Gaultheria reticulata:  2n=44 (Middleton & Wilcock, 1990)
Gaultheria rigida:  2n=22 (Middleton & Wilcock, 1990).  I have not seen the voucher for this species, but I suspect it is G. erecta.
Gaultheria tomentosa:  n=11, 2n=22 (Luteyn & Cotton 11406, NY) (Luteyn, 1995)

Gonocalyx portoricensis:  n=23/24 (Nevling, 1969)

Macleania rupestris:  2n=98 (Ecuador, Argent 525, E) (Atkinson et al., 1995)

Pernettya:  x=11 (Luteyn, 1995)
Pernettya prostrata:  2n=44 (Callan, 1941; Middleton, 1989);  n=11, 2n=22 (Luteyn 7966, NY) (Luteyn, 1995)

Satyria warszewiczii:  2n=48 (Costa Rica, Herklots s.n., E) (Atkinson et al., 1995)

Sphyrospermum buxifolium:  2n=ca. 130 (Ecuador, Argent s.n., E) (Atkinson et al., 1995)
Sphyrospermum cordifolium:  2n=ca. 48 (Ecuador, Argent s.n., E);  2n=ca. 48 (Ecuador, H526, E);  2n= 48 (Ecuador, Argent 521b, E);  2n=96 (Costa Rica, Lankester s.n., E);  2n=ca. 96 (source unknown);  [called  S. majus]: 2n=ca. 130 (Brazil-Venezuela border, Prance 20031, E) (Atkinson et al., 1995)

Vaccinium consanguineum:  2n=48 (Costa Rica) (Atkinson et al. 1995)
Vaccinium poasanum:  n=24, 2n=48 (Honduras, Herklots 116, E) (Atkinson et al., 1995)
Vaccinium racemosum [called Symphysia racemosa]:  2n=ca. 38 (Nevling, 1969);  [called Vaccinium guadalupensis]:  2n=36 (MacDougall & Vander Kloet, 1982)
 

Literature

Argent, G. C. G. & D. Brunton.  1984.  Some chromosome numbers in Ericaceae.  Notes Royal Bot. Gard. Edinburgh 41: 561-564.

Atkinson, R., K. Jong & G. Argent.  1995.  Cytotaxonomic observations in tropical Vaccinieae (Ericaceae).  Bot. J. Linn. Soc. 117: 135-145.

Callan, H. G.  1941.  The cytology of Gaulthettya wisleyensis (Marchant) Rehder, a new mode of species formation.  Ann. Bot. (London), n.s. 5: 579-585.

Hersey, R. E.  & S. P. Vander Kloet.  1976.  Taxonomy and distribution of Gaultheria in  the Caribbean.  Canad. J. Bot. 54: 2465-2472.

Hunziker, J. H., C. C.  Xifreda & A. F. Wulff.  1985.  Estudios cromosómicos en angiospermas de Sudamérica.  Darwinia 26: 7-14.

Luteyn, J. L.  1995.  Gaultheria.  Fl. Neotrop. Monogr. 66: 384-488.

MacDougall, P. S. & S. P. Vander Kloet.  1982.  Report of chromosome numbers.  Taxon 31: 772-773.

Middleton, D. J.  1989.  Taxonomic studies in the genus Gaultheria L. and related genera (Ericaceae).  Ph.D. diss., University of Aberdeen, Scotland.

Middleton, D. J. & C. C. Wilcock.  1990.  Chromosome counts in Gaultheria and related genera.  Edinburgh J. Bot. 47: 303-313.

Nevling, L. I.  1969.  The ecology of an elfin forest in Puerto Rico, 5.  Chromosome numbers of some flowering plants.  J. Arnold Arbor. 50: 99-103.