CYPRIPEDIUM 



CYPEIPfiDIUM (Tenus' slipper}. Lady's Slipper. 

 Moccasin Flower. OrcliidcLcece, tribe Cypripediea. 

 TliesenusCvpripediuTniswidelydistributeci,beingfound 

 in both S<.nfh niid North AniPrica. Ashi. Enrnpe, Japan, 



CYPRIPEDIUM 4di 



a week will be found of great assistance to keep the 

 plants in health. The hygrometer should never register 

 below 60, nor often above 80, as moisture in excess of 80 is 

 liable to damp-off the young growths. Ventilation reg- 



tha 



diate stamen sterile and petaloideous : (.-olumn short, cer- 

 nuate: apex trifld: lateral lobes anther-bearing: pollen 

 viscid ormealy, not compound; stigma deltoid, on front 

 of column beneath the stamens : capsule slender, pubes- 

 cent: placentation parietal: the lower sepals commonly 

 coalescent: labellum cup-form, inflated: Ivs. usually lig- 

 ulate, either tessellated or uniform green. The structure 

 of the column (or essential organs) of a Cj-pripedium is 

 shown in Fig. I'i42. The two anthers are :it .. -r T)i<- tliird 

 stamen is represented by the body, ii. 'I'l" -i i ni.t i- ii r. 

 The floral envelopes are torn away hi m I a 



jority of Cypripediums grow well, and )!. ' in 



from year to year. They do not requin a i» i mil nl n st 

 like species of Cattleya. The hardy species, such as 

 C. acaule and C. pubescens, are well worthy of a place in 

 gardens. C. spectablle, for color and form, ranks among 

 the finest species. It is a valuable orchid for foi-cing in 

 the greenhouse. As yet, no hybrids have resulted from 

 the intercrossing of "our native Cypripediums. Inter- 

 crossing of tropical with hardv species has proved fruit- 

 less. There is a tcndcncv to 'resolve Cvpripedium into 

 several •.'eiii-ra For tlie ,,„.■,„,«,.« of this work the 



and the like. See. ah 

 s from Cypripedium 

 ed ovary. Figs. 0-13 

 structural points in tht 



o,nouUetia. 

 in having a 

 md 644 con- 



trast soni 



The genus Cypripedium is naturally not a large one. Ben- 

 tham and Hooker think that the species are less than 40. 

 The species have been much hybridized and modified 

 by cultivation, however, so that the garden forms are 

 legion. Most of the names represent horticultural vari- 

 eties; and these names may be expected to increase. One 

 section of the genus has been separated recently as a 

 genus. Paphiopedllum. Monogr. of Cypripedium and 

 related genera by F. Desbois, Ghent, 1898. 



Oakes Ames. 

 Nearly all Cypripediums are of easy culture and may 

 be readily grown in one department, by devoting the 

 cooler portion to C. barbattcm, C. insigne, C.JavanU'um, 

 C. venustum and the Selenipedium group. The coria- 

 ceous-leaved evergreen species are all in more or less 



active growth the year round; therefore a liberal supply 

 of water must be given at all seasons, only allowing the 

 compost to become dry occasionally to prevent stagnation. 

 Light syringing should be frequent in bright we.ather, 

 and an application of weak liquid manure once or twice 



643. Cypripedium Charlesworthii. 



Shows section of ovary; of labellum or lip on the right; stigma 

 on the left : column on the right below. 



ulated according to external conditions is essential at all 

 times to maintain atmospheric action. 



During the winter months the thermometer should 

 register from 60° F. to 65° F. by night and about 70° F. by 

 day. With sun heat a few degrees more will do no harm. 

 On the approach of spring the temperature should be 

 advanced to prepare the plants for summer heat, and ac- 

 cordingly decreased on the approach of fall. About the 

 middle of February a light shading will be necessary to 

 prevent excessive heat and sunburn, with heavier shad- 

 ' gradually removed i 



ing toward midsmii 



the fall and entiti ! .! - 1. n^, ii 

 The greater |.:ii > i 



compost of two j. ; I ' i . I 



ing sphagnum nil I--, i m i 



voted to clean drainage. 'I'he i-' 



in rather firmly about the j-oo 



convex to discard surplus w.iu 



of the plant against decay duri 



heads of living moss pricked 



give a neat appearance. 



Cypripedium insiijne and kindred species should have 



one-third chopped sod added to the above mixture (see 



note on culture in Veitch's Orchid Manual 2: 34). 

 letimes suffer under pot cul- 

 k the base of the plant dur- 

 Basket culture will obviate 

 ■culation of air through the 

 'arlslni. (\ Ph il i npiuense 



H ith during the winter. 

 IS grow best in pots in a 

 to one part chopped liv- 

 I the pot room being de- 



.ni]io>t sliould )■(• pressed 

 -s, and the surface left 

 r ami lo niMu-.i the base 

 n^ dull weiitlier. A few 

 in over the surface will 



C. vill.-is 

 ture froi 

 ing sultr 



compost. C. Lnwei. C. /'arishn. C. 



and allied species, togeth.i- with .-:< l< mji, ,liiim cau- 



dafum, are truly epiphytie and jin fi aalily should be 



grown in baskets. By this methoii the roots are better 



preserved and less liable to decay during the winter 



season. 



