432 



CYPRIPEDIUM 



The Concolor section requires a warm, moist location 

 witli free access to the air. The species should be grown 

 in rather small pots, with at least half the space devoted 

 to drainage of brolien charcoal or other free material. 

 The patting compost should consist of equal parts 

 chopped sod, peat-flber and living sphagnum. Lime- 

 stone is often recommended as essential in the culture 

 of this section, but, the conditions being equal, I have 

 never noticed any beneficial results from it (Orchid 

 Review 4: 4.5; Veitch's Manual 2: 19-20). 



The deciduous tropical species, of which O.Irapeann iii , 

 C.Thibeticum and Sehnipedium palmifoUum aSord good 



CYPRIPEDIUM 



Brownii,25; Bui 



right. 



1 of the ovary. 



examples, require .similar treatment to the evergreen 

 kinds. They have a long dormant period during which 

 they should be rested in a temperature of 50° P., with 

 sufficient water to keep the compost moist until growth 

 starts, when they must be returned to their proper de- 

 partment and en.ioy a liberal supply of water until after 

 the flowering season, when they must be ripened off 

 and the water supply gradually withheld. 



The hardy species do better planted out in the open 

 ground or in rockeries, where they should be so situated 

 as to obtain good drainage nivl •'hri'li'. Tli- «"il iiiiitt be 



free and porous and cou^i-T ..i tI,,, , ,, ,i i- , ! ,1 turf 



and equal parts of peat Mil. I ' I' i lire a 



liberal amount of water .111-1 i , . r the 



foliage while growing, Imi iIm- - ii'i'; -t M i'- iri'ad- 



fiiiiu^'h \v:itir i, L-ivi 11 to keep the soil moist. During 

 till- wint. r till- plants -liuuld be protected with leaves or 

 pini- liiiui,'li-i. *'. xi„,l,,hile and C. piibescens grow well 

 under pot culture. A 7-10-inch pot will hold eight or a 

 dozen crowns, which should be planted 2 inches below 

 the surface. Two inches of drainage are sufficient. The 

 pots should be filled with soil (firmly pressed in) to K 

 itii-li holoiv flif rim. After a thorough watering they 

 -li-.iil.l Ih- ~i-.r..il in a coldframe and protected with 

 I- .1- . . .111-1 i.-iiu-hs. About the middle of February they 

 iiiiN III 1- 111 -\- ilto a coolhouse, where they should re- 

 iiLiiii l-M- 11 \v,-i-U, and then be placed in the cool eud of 

 the t'ypripedium house, where they should 1-t- wiiti n il 

 sparingly until growth action starts. Thes.- i-lnni^ iimk. 

 strong growths under this treatment, and tin- il-w. i - nn- 

 a decided improvement over those produi-i d iii.nniilly 

 outside. 



All Cypripediums are propagated by division. 



Robert M. Grey. 



Index to species described in the main list: Abbotia- 

 num. 5; acaule, 40; albens, 2.5; Amesianum, 25; Apple- 

 tonianum, Ifi; Argus, 6; arietinum, 43; Amoldianum, 

 25; atropurpureum. 5; auretim, 25; auriculum, 5; bar- 

 batum, 1; bellatulum, 20; biflorum, 1; Boxalli, 28; 



nil, lo; Japouicuiu, 41i; Kim- 



l.ingisepalura,25; Lowei,30; 

 rliinei, 25 ; macranthum, 51 ; 

 1..5; majus, 1; Mandevillea- 



Mastersianum, 14 ; Maulei, 

 nil, 53; Mooreanum, 25; mo- 



riisi-i-ii.,, :>; purpuratuui, y; purpureuiu, 1; I'ynaerti, 25; 

 ri.si-inii. .5; Rothschildianum, 37; Sallieri, 29; Sanderai, 

 4, L'-'i ; -Suuderianum, 36 ; spectabile, 50 ; Spicerianum, 

 2:;; Sti.iii-i,33; Studleyanum, 25; superbiens, 8, 25; su- 

 perlmin, 1, 5; Sylhetense, 25; Thibeticum, 45; tonsum, 

 10; Veitchianum, 8 ; venustum, 11; Victoria-Marie, 39; 

 villosum, 28; virens, 13; virescens, 5; volonteanum, 15 ; 

 Warnerianum, 1. Many other names are accounted for 

 in the supplementary lists. 



A. Leaves tesselated (or checkered in squares). 



B. Pi'laU more or less Ugulate, smaller than the 

 upper aepil. 



c. t'pper sepal veined leith green and purple: spots 

 on the petals marginal. 



1 . barbitum, Lindl. Lvs. oblong, about 6 in. long, pale 

 bi-ri.-iitli, uiijii-r surface dull green with darker green 

 luaikiii^'. : v.-a|.i- liiiii,'. ri-iiilish brown: ovary slender, 

 siilit.-iiili-.| l-\ a >iiiall i'l'iict; upper sepal orbicular, 

 (■vi-iil\ r. i|. \..l. wliit.-. with a green translucent base; 

 vi-iii- L-1--II I- III w:i\. I. .■.-limine deep purple: petals 



1,1-., -I -. ,ii -'i- :i|ii.-. -. u,.i..-'i-^iKii-L'iii|.r..viiled with 

 s.-v I -, 'i' I ! I ■ .11-1-: 1, ill. Mm, I I.i-..imi- |.iir|.li., infolded 

 pi,rli.-ii \-l|..-\i.h ..r [iin-i.h-li willi raisnl dots; lower 

 sepal iKirrow. gn-etiish, veined with green: starainode 

 pubescent, broadly crescent-shaped. June and July. 

 Malay Peninsula. B.M. 4234.— Of this useful species 

 there are many excellent varieties in which the flowers 

 are larger or more richly colored. The variation in foli- 

 age is. very remarkable. In general appearance this 

 species resembles C. Lawrenceanum. Many vars. in 

 cult. 



The following are varieties of 0. barbatum: Biflbmm. A 

 chance variation, due undoubtedly in most eases to vigor. See 

 Crossianum \ie\oyi.— €arulescens.— Crossidnum. Same as 

 Crossii. — Crbssii. Upper sepal very large, round-orbienlar. 

 white, veined with green ami ain.ari-ntly traiisversed by a band 

 of .■li.uson; petals mil. li I- i'- . I I U :- :•_■ ::r --'l .\.F. (5:55.5. 



— iiiijant^um='msv\\\n - ' ,,,..., i ,,,, ,,, ri.per sep;il 



unusually large.-i/...-' i-' - i .- hly t-olored 



and vif^nrous form.— .1.' '- \.'>inn. .-V ilark 



,,, ■,..-,- -.11- --■ .. ^- ^1- ^ -111 led by this 



2. nigritum, K.-iolib. f. Probably identical with C.pur- 

 piiratiim, var. obscurum. Dorsal sepal resembles that of 

 6'. piirpuratum, in other respects very similar to C. 

 biirbiitiim. 



3. purpur^tum, Lindl. Lvs. elliptic-oblong to narrowly 

 ovate, 4-5 inches long, glaucous, pale green tesselated 

 with darker dull green, pale beneath : scapes short 

 (about 5 in. long), purplish: ovary subtended by a 



