COMPREHENSIVE SURVEY OF TAXONOMY OF SPECIES PYRUS

The first classification of species of genus Pyrus on the basis of relationship was performed by DECAISNE /4/. The arrangement used by him was the following:

1. Proles armoricana /P.cordata, boissieriana, longipes/.

2. Proles germanica /P.communis/.

3. Proles hellenica /P.parviflora, bourgaeana, syriaca, glabra/.

4. Proles pontica /P.elaeagnifolia, kotschyana, nivalis, salicifolia/.

5. Proles indica /P.pashia, balansae, jacquemontiana, betulaefolia/.

6. Proles mongolica /P.sinensis/.

However KOEHNE /6/ included the species of genus Pyrus into two Section:

Sect.1., Achras – calyx-lobes persistent on fruit, styles normally 5 /sometimes 4/.

Sect.2., Pashia – calyx-lobes deciduous, styles 2–5.

The following taxonomist was MALEEV /7/. His classification based on DECAINE’s taxonomy in arrangeing the species of genus Pyrus.

1. Ser.Communes MALEEV – Proles Germanica DECAISNE /P.communis./ P.balansae, P.turcomsnica/.

2. Ser.Cordatae MALEEV – Proles Armoricana DECAISNE /P.boissieriana/.

3. Ser.Sinenses MALEEV – Proles mongolica DECAISNE /P.ussuriensis, P.asiae-mediae, P.grossheimii/.

4. Ser.Ponticae MALEEV – Proles Pontica DECAISNE /P.elaag ifolia, P.taochia, P.salicifolia, P.takhtadzhianii/.

5. Ser. Syriacae MALEEV /P.syriaca, P.sosnovsky, P.oxyprion, P.raddeana, P.zangezura, P.korshinskyi/.

6. Ser.Heterophyllae MALEEV /P.regelii/.

The classification of KOEHNE got the best known perhaps due to easy determination of species as well. /ASCHERSON–GRAEBNER, 1; REHDER, 9/ Numerous authors refuse to admit, that all the species could be included into the forementioned two Sections.
Even the well-known

Symposium on Production and Preservation of Pears

A. TERPÓ

https://doi.org/10.17660/ActaHortic.1984.161.5