July 20, ]907 



HORTICULTURE 



73 



KENTIAS 



When you attend the 

 Convention of the 



S. A. F. 



cojvie; to 



Wyncote, Pa. 



Jenkintown Station. 

 30 Minutes Ride 



And see 

 our 



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 Our Specialty 



in the wild state this can generally 

 happen only when an insect has 

 alighted upon the lip itself. By the 

 spasmodic motion the visitor is raised 

 and then hurled forward into the cup. 

 When he picks himself up he finds 

 that he is imprisoned in a chamber 

 with translucent golden walls, veined 

 with red. Whether the elegance of 

 this prison appeals to him or not must 

 be left to comparative psychology. 

 Escape is suggested by light from a 

 small aperture above him; and as he 

 crawls upward and out between the 

 petals and end of colunin he almost 

 unavoidably removes the pollen 

 masses, which he carries to the next 

 flower. The stigma of the next flower 

 receives the pollen of the first as the 

 insect again makes his escape, and so 

 cross-fertilization is secured. 



The stimulus leading to movement 

 is received by the sensitive ridge of 

 the lip; but the motion is executed by 

 a hinge situated at a little distance. 

 There must therefore be transmission 

 of the stimulus througn tne tissue ol 

 the lip. This is comparable to the 

 transmission of sense-impressions and 

 impulse through nerves in animals; 

 though in the plant there are no 

 nerves, as a microscopic examination 

 shows. Yet the transmission is very 

 rapid. The movement is actually 

 caused by the contraction of masses 

 of cells on the upper surface of the 

 hinge, which play the part of a 

 muscle. The analogy between plant 

 and animal physiology is here very 

 plain. 



The reception of stimulus with 

 transmission of the effect through the 

 tissues and resulting motion of parts 

 is common in plants, though since the 

 movements are usually too slow to 

 catch the eye, the fact is not gener- 

 ally suspected by those who have not 

 paid particular attention to the mat- 

 ter. 



The second plant to bloom is a very 

 nearly related species, with reddish 

 instead of yellow flowers, Masdevallia 

 Xipheres, also from Columbia. Its 

 power of movement might be pre- 

 dicted from the similarity of the 

 bloom to that of its congener. Yet so 

 far as I know its actual possession of 

 the faculty has not heretofore been 

 reported, probably because the plant 

 is rare in cultivation. It behaves pre- 

 cisely like its relative. The ridge 

 alone is sensitive, and the lip is quite 

 as quick in its motions. The flower- 

 stalk is declined, however, and the 

 flower being almost inverted, the im- 

 prisoned insect has only to walk down 



and out, effecting the pollination of 

 the flower by passing over the stigma, 

 as in the preceding species. 



Ames Botanical Laboratory, 

 N. Easton. Mass. 



A HYBRID IRIS. 



This hybrid Iris is the outcome of 

 crossing Iris paradoxa and Iris sam- 

 bucina, hence the name para-cina. It 

 was one of the late Sir Michael Fos- 

 ter's hybrids, but has come into the 

 hands of Messrs. Barr and Sons, King 

 Street, Covent Garden, for distribu- 

 tion. The standards are dark violet, 

 and the white falls are heavily veined. 

 It received an award of merit at the 

 meeting of the Royal Horticultural 

 Society on June 11th. 



Messrs. Bair, we are informed, have 

 a number of plants of this pretty new 

 hyl)rid. In the Oncocyclus species, I. 

 paradoxa, the falls are very narrow, 

 while the standards are large (hence 

 its name of paradoxa, referring to 

 these differences). In sambucina, a 

 bearded species native of Central 

 Europe and Asia Minor, the fall is 

 well balanced and large. — Journal of 

 Horticiiltiire. 



PUBLICATIONS RECEIVED. 



Part II of the Transactions of the 

 Massachusetts Horticultural Society 

 for the year 1906 has come to hand. 

 As usual it contains interesting re- 

 ports of the various exhibition com- 

 mittees, etc., together with accounts 

 of the progiess of the school garden 

 movement in Massachusetts accom- 

 panied by illustrations of some of the 

 children's gardening work. 



The Year Book of the Department of 

 .■Agriculture for 1906 which has just 

 come to hand is a volume of over 700 

 pages and compares favorably with 

 any of its predecessors in the value of 

 its contents. It is copiously illustrated, 

 the frontispiece being a portrait of the 

 late Henry Cullen Adams of Wiscon- 

 sin. There are several colored plates 

 of new fruits. Much space is given to 

 the problems connected with injurious 

 ins,ects and, in connection with some 

 recent utterances in HORTICULTURE. 

 it is especially interesting to learn that 

 up to date 57 species of birds have 

 been found to feed upon the various 

 scale insects. 



JUST TO HAND 



C. Trians, Uen. Phalsnopsls, D. 

 Wardianum, Vanda Ccerulea, V. Kim- 

 balliana, V. Ameslana, L. Anceps, 

 L. Albida, Epidendrum Vittellnum, 

 Cattleya citrlna, Odonto. Rossil flajus 

 CARRILLO k BALDWIN . SEGAUCUS N. J. 



ORCHIDS-I907 



Just to Hand Splendid Importations of 



CATTLEYA CICAS 



LABIATA 



SHROEOERAE 



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ORCHIDS 



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Caltleyas, Laelias, Oncldiams, Odonto- 



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WRITE FOR PRICES. 



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JUST ARRIVED JUST ARRIVED 



Cattleyas Perclvalliana, Sanderae and 



Speciosisslma, Uocldlum Kramer- 



ianum and Gaskelllana. 



Write for prices or telephone to 



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MADISON, N.J. 



P. O. Box ros. Phone 143 Madison. 



Justarrived in superb condition: 



Cattle.va Perclvalliana. Cattieya lablata, 

 Cattleya Schroeilerae, Oncidlum varlcosum 

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LASER fc HURRELL, Summit, N. J. 



You will find something worth 

 reading on every page of HORTI- 

 CULTURE. 



Kentia Palms 



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31 Barclay St, or P. 0. Box 752. NEW VOR 



