Hello Friends here it is as i said we are going to get educated by Pankaj as co ordianator of orchidaceae fortnight ... along with feast of his incredible collection of pictures Thanks for this key Pankaj, waiting for more pics of Himalayan orchids :)
On Tuesday, October 1, 2013 7:03:36 AM UTC+5:30, Dr Pankaj Kumar wrote: > > Orchidaceae family is the biggest among the flowering plants comprising of > nearly 36,000 species spread across the world from hot tropics to the > arctics. They can be identified by their unique third petal which is > modified in extraordinary structures to attract pollinations; androecium > and gynoecium which is fused to form a gynostemium; anther which is > modified to form waxy or powdery pollinia apart from velamnous roots. > > Family Orchidaceae is grouped into 5 subfamilies namely: > Apostasioideae > Vanilloideae > Cypripedioideae > Orchidoideae > Epidendroideae > > Keys for subfamilies (Barretto et al. 2011: Orchids of Hong Kong) > > 1. Stamens 2 or 3 > ............................................................. 2 > Stamen solitary > ............................................................ 3 > 2. Flowers actinomorphic or sub-regular; > lateral sepals free; lip petal-like, sometimes > broader; column fused only at the base of the > filaments; anthers 2 or 3, erect above lip; > stigma terminal > .........................................APOSTASIOIDEAE > Flowers zygomorphic; lateral sepals > usually fused almost to the apex; > lip usually deeply saccate or > urn-shaped; column with 2 lateral > anthers and a terminal, sheild > shaped staminode; stigma > ventral, stalked ............................................... > CYPRIPEDIOIDEAE > 3. Plant usually terrestrial, growing > from tubers or a horizontal fleshy > rhizome; pollinia segmented, > comprised of massulae, or mealy .............. ORCHIDOIDEAE > Plants usually epiphytic or lithophytic, > ocassionally terrestrial or liana-like, > usually growing from cylindrical stems > or pseudobulbs borne on woody or > tough rhizomes; pollinia mealy or > hard, often attached by a stalk > to a sticky viscidium ........................................... 4 > 4. Plants vinous (or terrestrial); > stem cylindrical, never with > pseudobulbs; pollinia 2 powdery, > arranged in monads or tetrads, lacking > stipes and distinct viscidium ......................... VANILLOIDEAE > Plant epiphytic, lithophytic or > ocassionally terrestrial; stems > cylindrical and/or with pseudobulbs; > pollinia 2, 4, 6, 8, usually hard, rarely > sectile, often attached by 1 or 2 stipes > to 1 or 2 distinct viscidia ................................. > EPIDENDROIDEAE > > > > > -- > *********************************************************** > Pankaj Kumar, Ph.D. > IUCN-SSC Orchid Specialist Group Asia > > Office: > Conservation Officer > Orchid Conservation Section > Flora Conservation Department > Kadoorie Farm and Botanic Garden (KFBG) Corporation > Lam Kam Road, Tai Po, New Territories, Hong Kong. > Residence: > 151, 1st Floor, Tai Om Tsuen > Lam Tsuen, Tai Po, New Territories, Hong Kong. > > email: [email protected]; [email protected] > Phone: +852 2483 7128 (office - 8:30am to 5:00pm); +852 9436 6251 > (mobile). Fax: +852 2483 7194 > > > -- > *********************************************************** > Pankaj Kumar, Ph.D. > IUCN-SSC Orchid Specialist Group Asia > > Office: > Conservation Officer > Orchid Conservation Section > Flora Conservation Department > Kadoorie Farm and Botanic Garden (KFBG) Corporation > Lam Kam Road, Tai Po, New Territories, Hong Kong. > Residence: > 151, 1st Floor, Tai Om Tsuen > Lam Tsuen, Tai Po, New Territories, Hong Kong. > > email: [email protected] <javascript:>; [email protected] <javascript:> > Phone: +852 2483 7128 (office - 8:30am to 5:00pm); +852 9436 6251 > (mobile). Fax: +852 2483 7194 > -- You received this message because you are subscribed to the Google Groups "efloraofindia" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/indiantreepix. For more options, visit https://groups.google.com/groups/opt_out.
