IRIS 



IRIS 



823 



■Steadily becoming warm, the pluuts being uncovered as 

 soon as tlie conditions will seem to warrant, should be 

 in the best possible shape to reward one with their noble 

 blooms. It is the lack of this gonial spring in the lati- 

 tude of New York wliich, however, leads often to cul- 

 tural troubles. The leaves, having been protected, are 

 none too hard, an<l, with the constant alternate thawing 

 tind freezing, and the hii.^h winds, hot and cold, the 

 plants need coiistant watrliiug and application of needed 

 covering till really genial weather. Otherwi^se the foli- 

 age is blighted and no flowers are produced. 



In gardens which are low and never free from mois- 

 ture, the best procedure is that followed in Holland, 

 lifting the rhizomes in July and taking them undercover 

 in dry earth, planting out ugaii^ in the fall. In this case 

 care should be used in lifting not to injure the numer- 

 ous fleshy roots. The Palestine and Persian forms of 

 these Irises are considered the most difficult to cultivate, 

 from their habit of early growtli. 



Irises are not only increased by the division of the 

 rhizomes or by offsets, but may be rapidly grown from 

 seed, which they usually produce freely, though, in 

 most cases, they require artiticial fertilization. A large 

 number of the common Irises of gardens are hybrids, 

 and of late years a number of beautiful hybrids have 

 been produced between some of the rarer Oncocyelus 

 species, and between these also and common forms, as 

 I. varief/ata , etc. There are still opportunities to pro- 

 duce many new and untried crosses, and experiments 

 in this line are recommended. The pollination of the 

 Iris is simple. The anthers should be removed when 

 the Mower tirst opens, and preserved in paper or viids, 

 properly marked. The pollen will retain its potency for 

 a week or perhaps longer, and may be applied to the 

 stigma of the flower selected (the anther of which has 

 been removed promptly) with a camei's-hair brush. 

 The stigma will be found near the apex of the petal-like 

 >ttyle, and is ready for pollination when the upper edge 

 drops down and exposes the upper surface. Many Iris 

 seeds germinate with considerable irregularity, and 

 failure to start promptly should not lead to discourage- 

 ment or discarding of the pan in which the seeds are. 



J. N. Gerard. 



INI>KX. 



'ti-uta, 12. Fliireiitina, .'»4. Lortetii. "'.I. 



;il;ita, 99. f(etidissiin;i, '21. lupinu, SU. 



Alberti, 36. Fo.stevi;ui;i, Dd. lurida, 51. 70. 



albicans. 5+. f rug rami, 7, 41. Lusitanica, si. 



amoena, 59. fulv;i. 17. hitesceus. 44. 



Anglicay 82. fumosii, IDl. matTosipbnn, '1. 



aphylla, 50, 50. 57. furcatn, .'ill. major, 77, 87. 



areuiiria. 40. tTiitesii, 7y. Mariie, 71. 



Asiatica, 55. Germ;niic;i. '>(!. maricoides, 92. 



atrofusca, 75. gigant&n. 20. jMilesii, ;!4. 



atro purpurea, 74. ijranUfi, 10, ;!7. ;!'.). i)iinor,4i>. 



;itroviohicea, 37, 65. graniiiie;!,, 11. Missouriensis, l.'>. 



.-lurea, 24. ("Tr.ant-I>tTftii, 4. ilounieri, 25. 



tizurea. 37. Gublenstiedtiana. Nazariua, 7!t. 



Bakeriana, 90. 23, neglecta, .'iH. 



Balkana, 40. iji/psca, Oit. Nikitensis. 11. 



Benacensis, 52. hannatoiihiiUa. 12. nothn, 30. 



l)irtora, 41. halophnlln, 3(t, nudicaulis, 41. 



bialumis, 7. Hartwegii. :i, ochrolevni, 20. 



Billiotti, 03. ££elL'na\ 71. oculata. 102. 



Bismarekiaiia, 72 hexagona, 20. OlOieitsis, 45. 



Bloudovii, 47. Ifispanica, 81. orchioides. 102. 



finhemica, 50. Hi.strio, 88. orientalis, 12, 20. 



Boissieri, 80. hisfrioidi's, 87. os^Tjetala, 7. 



bracteata, 14. honnrnhilis, 4H. pnhidaria. 7. 



OaroliniaTia, 21. luimilis, 1. Pala^.^tina, W. 



^Jaucasica, 100. Himciarira, ,'0. pnllida, 18, 55. 



Oengialti, 42. hybrida, .Vi, Panormitaiia, .'JS. 



Chainseiris, 45. Iberit-a. Tti. paradoxa, 00. 



Chineiisis, 35. Itallca,i'K Persi<-a.04. 



coenilea, 87, 102. Jaciiiwsiana. iW. plicata, 5(1. 



<'oncolor,GS, .laponica, ;{5. prismaticji, 10. 



'•ristata, 32. juueea, S,'\ Psemhn-orns. IS. 



cuprea, 17. Junonia, ^i'j. pseuilo-pumila, 3S. 



cyanea, 87. Krempferi. 28. pumila.. :{7. 



Cypriaiia, 64. Kochii, 53. purpurea, 9i. 



Daufordia?, 93. Kolpakowskiana, retimilata, 00, h7, 



Delavayi, 8. 91. Rosenbac-liiaua, '.''■. 



Douglastana, 10. Korolkowi, 68. Rutheniea, 1, 5. 



ensata, 7. Krelagel, 87, sambueina, 02. 



falcata, 50. l;wvi£:ata, 28, sanQ^iinea. 12. 



filifolia, 84. Leitditlini, 07. Sarii, 70, 79. 



fimbriata, 35. LeichUinlann, 08. scorpioides, 99. 



flave.scens, 49. Jincata. 06. setosa, 22. 



flavissima, 47. ]oii2i).pct;il;i, 9, Sibirif-a, 12. 



slcu-la, 55. siipi'rha. 13. ratjrt, 07. 



Sindjareusis, 97. Susiana. 77. varieoata. 12, is, 48. 



Sisyrinehiuni, 92. Suwacowi, 00. A'artani, 8U. 



Sngdiana. 23. SwL-rtii, 57. verna, 31. 



spvciosa, 55. to'-tuiiim, 33. v<'i-sic<ili>r, 19. 



sp''ctabilis, 81. tenax, 0. riolacnt. OS. 



.spuria, .30. Tingitana, S3. \ ircsrms, 4;i, 



siiualens, 01. Tnlniimna, 15, Vir>iinir,i, lo. 



Sfatrl/ce, 44. Trojana. 29. xipbi<>iib.'s, K2. 



sfgluaa, 13. uu^-ui'-ularis, 13, Xipliium, 81. 



Synopsis or SrEcEXERA ix r'rLTn'ATPtx. 



Srrles I. I?no/s/nrk a sJn-ni, fhirJ:. nr rrerpiinj 

 rJihi.'Di'. . 



Apo(40n. OutiT sc-:ments of the perianth wirliniit 



a beard or cr.-.st Species 1-30 



Pakdanthoi'Sis. ( )uter segments of the perianth 

 not ilistinctly beanir.j or crested, merely keeled ; 

 siimetimes slightly h;iiry Species 31 



En'axsia. Outer segments of the perianth dis- 

 tinctly crested on tlji' claw and lowi-r jiart of 

 the bUule Speeies 32-:!5 



PSEUDEVAXSFA. < >uter si-gnu'Uts fiearded or hairy: 



hi-ard springing from a rudimentary crest 



Species :u\ 



PoooNTRrs AND Regelia. Outer segments bearded 

 or hairy: hair restricted to a dense beard alon^^ 

 the midrib Species ;i7-G8 



< )xcO('veij-s. ( )uter segments bearded or hairy : 

 hairs diffused over the lower part of the lihide 

 and claw; iiuier segments larger tliun the onter. 

 Species i;!)-80 



Srn'rs IT. BooL^torlc hiilhnn.^. 



XiPHiox. Inner segments of the perianth large, 

 erect : stamens not adhering to the style 

 branches Species 81-91 



(tvnandiris. Inner segments large, erect: sta- 



7nens adhering to the style branches Species '.>2 



duxo. Inner segments small and spreading or 



deflexed " Sj.i^cies !):i-102 



SUBI.iEXrS APi.iGoX 



A. LvR. liui'ii r, (li'iii'mUi) h'S$ tha)i 

 '^-•i in . h)-i"id . 

 B. Shell ill sp! ii(i>if/ up i)iin 

 fibi^r.^. 

 0. I'ali'es of the spa the i/reeti . 

 I) . Tu be of the per la )if]i 

 1}<2~2 i)i- Jong. 



E. Spathe sessile 1. humilis 



ee. Spathe stalked 2. macrosiplion 



DP. ViiJ)'-' of the peria nth 

 short or obsolete. 



e. F/s. iu'llon- .'1. Hartwegii 



4. Grant-Duifii 

 EE. F/s. so)iie sha'h' of 

 blue or icJiite. 

 F. Stem Jvs. rednrefl . 

 (i. Stem terete. 

 H. I^oofstork 

 slender, 

 wifle-ereep- 



inrj '). Ruthenica 



HH. Boots tock 

 s h r f , 

 ereepimj . . (i. tenax 



7. ensata 



8. Delavayi 

 GC. S tern. c )it - 



pressed 0. longipetala 



FF. Sf'-}n Jrs . Jrnxj . 

 ;!.■». ml (If orrr 1 

 ft. ill Irin/th . . . AO. prismatica 

 U. graminea 

 CC. \'<i!r<'sof the spallie hnnrii 



and sr<ii-i<ins 12. Siblrica 



BB. Sheaths iii>t spJittiyiij into 

 fibers. 



o. Stem iiearhf obsolete 1:1. unguicularis 



CO. Stem- pn'Sf}>t, rjoihed yeifh 



shrafhim/ Itrnrfs 14, bracteata 



