Satish ji This is what I have been teaching my students for 35 years, since this provides examples of tautonym (Malus malus), how basionym becomes unapplicable and so on. Unfortunately (but correctly now) the name Malus pumila is now restricted to Paradise apple, a wild species, smaller tree with bright pink petals and fruit not larger than 1.5 cm. Our Table apple or orchard apple is now known as Malus domestica.
-- Dr. Gurcharan Singh Retired Associate Professor SGTB Khalsa College, University of Delhi, Delhi-110007 Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. Phone: 011-25518297 Mob: 9810359089 http://people.du.ac.in/~singhg45/ On Fri, Oct 7, 2011 at 10:43 AM, Satish Phadke <[email protected]> wrote: > Yes Madhuri ji > Thanks for reading it thoroughly. > *Pyrus malus* is not an accepted name but is a synonym of *Malus pumila*. > The correct genus of Apple is *Malus* > > > On Fri, Oct 7, 2011 at 10:35 AM, <[email protected]> wrote: > >> ** I expected this at the start of week. Helps in understanding. >> Thanks for details. >> One doubt. Apple genus Malus or Pyrus or both or one new, one old? >> Madhuri >> >> Sent from BlackBerry® on Airtel >> ------------------------------ >> *From: * Satish Phadke <[email protected]> >> *Sender: * [email protected] >> *Date: *Fri, 7 Oct 2011 10:02:32 +0530 >> *To: *indiantreepix<[email protected]> >> *Subject: *[efloraofindia:86371] ROSACEAE WEEK >> >> *FAMILY OF THE WEEK: ROSACEAE* >> >> There are over 25 genera and around 215 species in India mainly confined >> to temperate Himalayas ascending up to 6000 meters. >> >> *Vegetative characters:* >> >> The plants are herbs, shrubs or trees several species of Rose and >> *Rubus*have prickles. Sometimes, as in >> *Prinsepia* and *Crataegus* the shrubs are armed with sharp spines which >> are modified branches. Vegetative reproduction takes place in several ways. >> >> The leaves are alternate and simple, pinnately or palmately compound. The >> stipules are usually present. >> >> *Inflorescence and flowers:* >> >> The flowers are rarely solitary or fascicled, but commonly they are >> arranged in various types of definite or indefinite inflorescences. The >> flowers are actinomorphic or sometimes strongly zygomorphic, bisexual or >> unisexual,polygamous, pentamerous, hypogynous, peri or epigynous. The calyx >> is of typically five basally connate sepals; the calyx tube is free or >> adnate to the ovary. The aestivation is imbricate or valvate. In some genera >> an epicalyx is also present. The corolla is of generally five free petals >> (there are numerous petals in cultivated species of Rosa) which are usually >> imbricate in bud. The number of stamens is variable from one to many. They >> are often in whorls. The filaments are distinct or sometimes monoadelphous. >> The anthers are dithecous and introrse. A cushion shaped or ringlike nectar >> secreting disc is present between the stamens and carpel. The gynoecium >> shows much variation. There are ten different tribes of gynoecial characters >> and type of fruits. >> >> *Seeds:* >> >> The seeds are usually without endosperm. >> >> *Pollination and dispersal:* >> >> In most Rosaceae the nectar is collected in the receptacular tube and >> easily licked by insects. The flowers are mostly protogynous and favour >> cross pollination. >> >> The seeds are dispersed by animals and birds. >> >> *Examples:* >> >> *Rosa multiflora *(Rose) >> >> *Rosa damascene* >> >> *Rosa indica* >> >> *Rosa banksiae* >> >> *Rosa centifolia* >> >> *Pyrus mallus* (Apple) >> >> *Pyrus communis *(Pear) >> >> *Prunus persica *(Peach) >> >> *Prunus domestica * >> >> *Prunus institia *(Plum) >> >> *Prunus armeniaca *(Apricot) >> >> *Prunus amygdalous *(Almond) >> >> *Fragaria chiloensis* (Garden Strawberry) >> >> *Fragaria vesca* L. (Alpine strawberry) >> >> *Spiraea* >> >> *potentilla* >> >> *Brambles* >> >> *Cinquefoil* >> >> >> >> >> http://satishphadke.blogspot.com/2008/12/family-of-week-rosaceae.html >> -- >> Dr Satish Phadke >> > > > > -- > Dr Satish Phadke >
