DATE - JUNE 199S
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ASSOCIATION of DATE - JUNE 199s LEADER : Peter Hind, 41 Miller Street, Mount Druitt, 2770 SECRETARY: Moreen Woollett, 3 Currawang Place, Como West, 2226 TREASURER: Joan Moore, 2 Gannet Street, Gladesville, 2111 SPORE BANK: Dulcie Buddee, 4 Leigh Street, Merrylands, 2160 How I Propagated Blecllnurn nudum - Ed.: A Modest Report! Contributed by Ian Cox In the Uecember 1994 Newsletter the Editor suggested that it was a notable achievement to donate about 30 Blechnum plants to sell at the last Kariong Spring Festival. Not really! - It was all due to Mother Nature. It all started when we moved to our present home in April 1992. We brought with us from the old garden as many of the ferns as we could in pots. These included 4 or 5 Blechnum nudums, of which two were fairly mature plants. These pots of ferns were put on metal stands in the shadiest place we could find, which happened to be against the southern wall of the house. They stayed here until we got around to making a fern garden which we finally did last year. After about 15 months sporelings of Blechnum nudum started to appear in the sandy bush soil underneath the pots. The sporelings were left here until their fronds had grown to about 30-40 mm long and were considered large enough to pot. They received their moisture from the rain, and from drips when pots above them were watered now and again. So these ferns were produced with minimal effort on our part - the ferns themselves did most of the work. It would be interesting to know if other readers have had similar experiences with Blechnum nudum or other species of ferns. Plant That Ended an Australian Trek The article that follows on page 2 was taken from the 'National Geographic' as a contribution to the Newsletter by Kyrill Taylor. The Marsilea ("nardoo") silhouettes are of fronds from plants originally grown by Joan Moore. The following description relevant to the article's mention of "sporocarps of the nardoo fern", is taken from 'Australian Ferns & Fern Allies' by Jones & Clemesha. Marsilea: Rhizome long creeping, slender, branched, growing in mud with erect leaves or growing submerged with floating leaves; leaves (sterile fronds) on long stipes, each consisting of two pairs of leaflets arranged in a fourleaf-clover pattern. The spores are borne in sori, in a case formed by modified leaves and termed a conceptacle. This is attached to the rhizome by a pedicel. The pedicel and conceptacle are together known as the sporocarp. Sporocarps are mainly produced by plants in drying conditions. Plant That Ended an Australian Trek n iln cpic jortr~lcyof 1,650 ~lriles,lir>bcrt O?f lara flt~tke,Willirul~ Jollrl Wills, Jollri King, i~tld I C11:irlcs Gray in 1860-01 I>CC~IIII~I he f irsr Iluro- I)eitlis to c~ossAustri~lia's 1111clii11 tctl i~ilcriorsoiltli to r~ortll(GEOGRAI'IIIC, February 1979). I3i1t tragedy struck 011their retirrl~:Burke (bottom), Wills, ant1 Grav died as lliev trnveletl Ii~liicfl.u~li 111c (.>t~II'of Cur- I)CIII~IIia 10 ~ICII)O~III~C, I lislol ic iICCoUIllS a111il)t~lc: 111~d~illll~ I0~~ill~\'il~iOll. Now two Atlslrirlin~iscicn- lists, relyirig 011 20111-ccl~tt~l.y i~~etlici~lkliowlctlge a~itlclucs ill tl~ccxl~lol.crs' jo\~l.nill~ a~~rl lellers, olicl. ;I ~rcwIl~cor,y. John W. Eir1.1,a biochc~iiis~ at Sytlney's I<oyi~lAlexi~ntlri~ Marsilea mutica I-losl~iti~lTor (.:l~iltlrcn, a~~tl Barry V. IvlcCleary, an ;~gri- cultural scientist, say Ilia1 the \ Burke-Wills party had plenty of native food. dut they T believe the explorers prepared it improperly and died of beriberi, caused by a deficiency of Ihiamine- vitanii~iBI. Their own ratio~lSof flour and salted beef running low, the Burke-Wills party received the seedlike spo- rocarps of the nardoo fern (above) from Aborigines, ~vlioground then1 with water to niake a Illin palatable paste. The scienrists discovered lhat rlardoo sporocarps co~~tainlarge ar~lountsof tl~ia~liinasc,a fast-acting enzyme lliat breaks tlow~ialld destroys tl~iamine.13111 niixing nardoo with waler stops the enzyme's action. 'rlie trekkers, Iiowevcr, groirnd the nartloo dry, llie way Eilropealis prepare grains, tlius releasing the tl~iamine-tlestroyil~genzyme. The explorers experi- criced weak!~essa!~d pain in !!!eir legs, t1~1deve!opec! wasted muscles and Iiypothermia so that tl~eycould not niove. One by one, all but King died. Mars ilea drumrnondi TIIE GAANGER COLLECTION Nfllioltal Ceog~*npllic,hlnvcli 1995 Doodia - the Queensland Way! In our December 1994 Newsletter, following a description of -a and Doodia squnrrosa, it was nlentioned that none of the Sydney members present at the meeting had either of these ferns growing. We wondered how widely they are grown by Queensland members. Our Treasurer has passed on a note received from Ross Scott of Kenilworth, which accompanied a plant of DoOdia smlarrosa sent as a gift to Joan. As the letter contains items of interest to all Doodia fanciers, we hope that Ross won't nli~idUS printing part of his letter as follows. F'II'. I,:>III -I:1-1 (:> l:! 11. 5.1: 4:. I:J :;i!4.l: 1,) tJ i::\~jI-I~I~,. y i 11 L: :I, i. VE 'bet\E? 11) i tA r7 LII~'k. 11 C C)iii%'h. c:) I- or..lk:, v i ci; i, .k c:?d .t 1.1e PI 1. 1-1 y ol-t Fe :I. :I. !i; at.-e a , 'T'er: an j. a (3-ee I:: an cl .F cnilr- of: ,I::he (~?il:.lr.l:. r.errrr'tcwrl.:s ~2.1: kl-.re 0:ig 8crr.tb .that crnce wa!ii the lar'ges'k alV"fiifi ra1.r t:) .I:rc:)~::) i.c:: a J, r-a :i. I-,1: or-e!a.t: j. 1-1 .I:: t~e~j~1.t.t brer-~..t I.,) efn j. spkrelr.e, I::: c.>ver1,.ir'r ar,r i::\r.eii\ a!3 11 alp-g e a !s t 1-1 e E;yclr~~!y r1,e.l: rP8 ap c) l :itar] ar-ea . "Iud~\y cwt :I. y e J. g l'r t: !i;rna l 1. 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