Garg ji, Thank you for resurfacing this post How should I convey my thanks to Mrinal ji and Chris Fraser-Jenkins ji?
On Sun, Nov 6, 2011 at 5:43 PM, J.M. Garg <[email protected]> wrote: > A reply: > " The photo is a very fine - prize-winning - specimen of a Nephrolepis. > It may well be N. exaltata, a tropical American species, widely cultivated > and with many ornate and fancy cultivars as well. However I seem to have > mislaid my copy of the monograph, so can't look up the details until I find > it. Maybe you can find the well known journal in a library: Hovenkamp, > P.H. & Miyamoto, A conspectus of the native and naturalised species of > Nephrolepis (Nephrolepidaceae) in the world, Blumea 50: 279-322. > The stipe and rachis scales are very important in this genus - and > are not shown in the photographs. It is not N. cordifolia, of course. I > will check N. exaltata and also N. falciformis when I can remember where on > earth I put that monograph! > About fern-spores, they are very widely grown on a large scale in > many countries. The big commercial Dutch company, Royal Lemkes [?Lemkas], > propagates huge numbers of plantlets from spores in sterile conditions. > There is a nice paper in the Fern Gazette, c. 1975 by Professor John Lovis > (then at Leeds) on how they grew plants from spores and then hybridised > them leading to genome analysis showing the origin of allopolyploid > species. In fact there are well known spore-exchanges running > internationally, including from the British Pteridological Society and the > American one. > The late Professor Reichstein grew large numbers of Asplenium species > from spores in Switzerland for cytological and morphological study, and his > greenhouses had rows of small pots with large watch-glasses over them, of > growing spores and sporelings. I myself also grew large numbers of > Dryopteris for hybridisation during my Ph.D. research and they are usually > easy to grow from spores. > While some people use agar plates or tubes, these are subject to > fungal infections rather easily, and for most species there is actually no > real need to do that. Most people simply sterilise the soil by pouring on > boiling water in little small pots, when cool, sprinkle the spores, then > cover the pots with a watch-glass and don't allow them to dry off - stand > in a saucer of water from time to time. Those that get badly infected with > algae and moss protonema can be thrown away, or the prothalli separated > when large enough. Mature prothalli need some water drops or more to sit > on the surface when they are ready to fertilise. Sporelings can be > "pricked out" (separated) into slightly larger pots, with four or five > individuals, then separated again individually later. Prof. Reichstein > used to find that spores grew a lot better in spring-time than in Winter - > how do they know when to grow?! > My late father and I grew a nice batch of tree-ferns from spores in > Wales when I was about 8 or 9, and several grew to full maturity in our > greenhouse over about 20 years. I've also seen very fine agar-tube > cultivation of the beautiful Cyathea crinita down at the Tropical Botanic > Garden Research Institute near Trivandrum. But we also grew it on soil at > home in the UK. > Warning! Once you start and get into it, one can't stop!!! And with > spore-exchanges one can grow all sorts of interesting things. > Happy sporulating! > Chris Fraser-Jenkins, Kathmandu. " > > On 6 November 2011 14:00, J.M. Garg <[email protected]> wrote: > >> Forwarding again for Id assistance please. >> >> Some earlier relevant feedback: >> >> “Nice photo Bhagyashiri ji. Is it possible to grow new ferms from the >> spores? I tried once but failed. Please let me know. >> >> Regards, >> >> Mani” >> >> >> >> “Mani Ji its possible but you need to grown then in culture media and >> then transfer !! quite hard to grown them naturally >> Tanay” >> >> >> >> >> >> ---------- Forwarded message ---------- >> From: Madhuri Raut <[email protected]> >> Date: 6 August 2011 10:01 >> Subject: [efloraofindia:76191] ferns >> To: efloraofindia <[email protected]> >> >> >> Would like to share pictures of Ferns in my garden >> Regards >> Bhagyashri >> >> >> >> -- >> With regards, >> J.M.Garg ([email protected]) >> http://en.wikipedia.org/wiki/User:Jmgarg1 >> 'Creating awareness of Indian Flora & Fauna' >> The whole world uses my Image Resource of more than a *thousand species*& >> eight thousand images of Birds, Butterflies, Plants etc. (arranged >> alphabetically & place-wise): >> http://commons.wikimedia.org/wiki/Category:J.M.Garg. You can also use >> them for free as per Creative Commons license attached with each image. >> For identification, learning, discussion & documentation of Indian Flora, >> please visit/ join our Efloraofindia Google e-group: >> http://groups.google.co.in/group/indiantreepix (more than 1740 members & >> 90,000 messages on 31/10/11) or Efloraofindia website: >> https://sites.google.com/site/efloraofindia/ (with a species database >> of more than 6000 species). >> Also author of 'A Photoguide to the Birds of Kolkata & Common Birds of >> India'. >> >> > > > -- > With regards, > J.M.Garg ([email protected]) > http://en.wikipedia.org/wiki/User:Jmgarg1 > 'Creating awareness of Indian Flora & Fauna' > The whole world uses my Image Resource of more than a *thousand species*& > eight thousand images of Birds, Butterflies, Plants etc. (arranged > alphabetically & place-wise): > http://commons.wikimedia.org/wiki/Category:J.M.Garg. You can also use > them for free as per Creative Commons license attached with each image. > For identification, learning, discussion & documentation of Indian Flora, > please visit/ join our Efloraofindia Google e-group: > http://groups.google.co.in/group/indiantreepix (more than 1740 members & > 90,000 messages on 31/10/11) or Efloraofindia website: > https://sites.google.com/site/efloraofindia/ (with a species database > of more than 6000 species). > Also author of 'A Photoguide to the Birds of Kolkata & Common Birds of > India'. > > -- Regards Dr.Bhagyashri Ranade
