PLATYCERIUM 



15:111. Gn. 51, p. 259. G.C. III. ]0:(;i)7. Xot Mu. 1, p. 

 77, which is really P. grande. 



Var. mftjuB, Moore, is stronger-growing, more up- 

 riglit, and with thicls, leathery, dark green fronds. Ac- 

 cording to P. L. Atlsins, the fertile fronds are more 

 broadly cut than the type and seldom forked more than 

 once. Polynesia. Veitch's Catalogue 187a, p. 13. 



W. M. 



No private conservatory should make any pretensions 



PLATYCLINIS 



the fir 



The 



ren and fertil.-. the f.uiiur hviui; rcuuded disks which 

 clasp the tree trunk, while the fertile fronds generally 

 hang down and look like antlers. Occasionally the 

 barren fronds are more or hss antli-rcd, as 

 qrande, hut never give so p.rl. i ■< -UL-c-iiii) j- '1'. 

 the fertile fronds. The speri.- -^ .! n , ■ i- 



P. n/cicortje, which is therefore- 1 ' . i i !,.:,, '.,,„[ 

 the cnninioni-st in cultivation. Th!- ~|m> !■ - run > m<1ui.' 

 a niijlii 1. i,,|i. I ii.,,.. of 50° P. or even less. The glory 

 of iIm ..r, is p. ffranrie (Fig. 1848). The 



barn II :i I ixceptionally large, rounded and 



w:n \ iiiiiiLii. III.' base, deeply cut above, forming 



an vL. I ..r _' l.anks-rnund to the pendent fertile 



fronds, uhi.li i.ii k in.il-.- tiin.--i and have much narrower 

 segments tlian tin l.air. n fn.nds. Unfortunately this 

 is the only sjm . i. ^ thai .1... - not produce suckers at the 

 roots, by which all tin- ..tln-rs are easily propagated. It 

 alone must be raised from spores, a long and anxious 

 process. The only kind that has an erect and rigid 

 habit is P. Hillii, which therefore is grown in pots, 

 while all the others may be gn.wn on a block of wood, 

 and some in lia-k'-i~. P. ' - / . '..- .liit. f> from all others 

 in having a s.-|iai-:it. .11 1 .., ,. ' ,.| structure on which 

 the s.iri tin- linrn. . tin ■ - -aring their spore- 



masses on the iiiHli-i -nil... . .11 ih.- Iri-iile fronds at or 

 near the last fui-k^. /'. .',./..///,,, lie. ugh advertised in 

 America, is probably nowhere in cultivation in the 

 world. There is an improved form of the common 

 type known as P. alciroiiie, var. majus, which is 

 stronger-growing ami has thicker fronds, enabling it 

 to endure a ilin i- atiii..-|ilieie. It is therefore one of 

 the best, it ii..t tin- I., st, f..r exhibition purposes. At 

 the other exti-.-nn- ti-.'iii the slender grace of P. aid- 

 corn,' atnl tin v-t is fin- bold and broad style of 

 P. .A'/. I '„ /'. .Ini/nleiise is the only one -which 

 bear n. .■ to antlers. 



.Ml ■ r..|uire a moist atmosphere, though 



tin- li I . .1 .. il.l be reduced during the winter. 



With il M. iiiiiii of P. nUicnrne they all require a 



hii^h t. inp' t a- i!i .-. ,\!1 need perfect drainage, and in 

 wini.i-ilnv ^hi.iil.l nipt have too much direct syringing, 

 for tin y in . il a sii^;]|t rest and are likely to spot or 

 duinii .ill if wat.-r remains on the foliage too long. 

 P. .KUiioiilcmii is said to be particularly sensitive. 

 Stag-horn Ferns are often grown on pieces of tree-fern 

 stem. They are fastened to such support or to a board 

 by means oi wire, having first furnished the roots with 

 a slit idece of peat for root-hold and some sphagnum 

 moss, to which may be added a little bonemeal for food 

 and some chjmMml for drainage. A little moss may be 

 added every year or two. Eventually the barren fronds 

 will entirelv cover this material and the plants should 

 then be left" undisturbed for years. A Stag-horn Fern, 

 with antlers spreading C or 8 feet, is a sight never to 

 be forgotten. -^v. H. Taplin and F. L. Atkins. 



PLATYCLlNIS (Creek. h,;.a,} l..,l: ill allusion to the 



About 20 species in Indii 



Heinrich Hasselbrino. 



The several 

 pact-growing 

 They are of e 

 to either pot i 

 able for those 

 do not Ilk.- li. i 



sary it is 1.. si t.. .1.. it ]\i-i alt.-r the flowering period. 

 The coiii|iiist sh.iiihl i-..ii~ist ..r e.|ual parts chopped live 

 sphagnum nniss tin. I (-1. tin ja-tit tiber. The roots should 

 be carefully distributed and the compost pressed gently 

 but firmly in around them, leaving the surface slightly 

 convex when finished. At least two-thirds of the space 

 should be devoted to free drainage with potsherds or 

 bits of charcoal. 



A shaded location and moist atmosphere, with a tem- 

 perature of 60-65° F. by night and 70-75° by day, will 

 afford them satisfactory growing conditions. They re- 

 quire a liberal supply of water at the roots, with occa- 

 sional syringing overhead ill l.riL'ht w. athi-rwhen grow- 

 ing, and should never be ;.lin\. .1 i.. r.-maiu long dry 

 even when at rest. ThepLini- ii..|iniiily produce side 

 growths from the old pseu.l.iliull.s. which may be re- 

 moved after the growths are matured, leaving three or 

 more of the old pseudobulbs attached to each piece, 

 thus increasing the stock. When no natural break 

 occurs, however, the plants may often be induced to 

 break by slightly twisting, or notching the rhizome 

 with a sharp knife, thereby retarding the flow of sap at 

 that point. ■ Robert M. Grey. 



glumioea, Benth. (Dendroch)lum glnmdceum., Lindl.). 

 Pseudobulbs crowded, forming dense spreading masses, 

 the young ones clothed with red scales: Ivs. solitary, 

 broadly lanceolate, tapering to a petiole which is en- 

 closed" by the sheath: peduncle from the top of the 

 j.s, iirlnhnlh. slender, bearing a long, drooping spike of 



' .1,.., lis.: sepals and petals spreading, oblong, 



: nil. Idle lobe of the labellura rotund, curved, 

 J li shy ridges. Spring. Philippines. B.M. 

 I--::, r. U. 111. 18:552. 



iilii6rmis, Benth. ( DendrochUum filifdrme, Lindl.). 

 Pseudobulbs crowded : Ivs. linear-lanceolate : flower- 

 stem thread-like, bearing a long, pendulous raceme of 



