SELENIPEDlUiM 



SELF -STERILITY 



rather stif 

 high, abon 

 pale jell..' 

 greenish I 

 often itt 1 





-\ II atratum \]\\l il i '^ ini,Eaz- 



IG. DominiUnum, Hort. (Vypiipednim Dommi&mim, 

 Reichb f. I. Fig. 2309. Lvs. numerou',, about 1 ft long, 

 acumin.ite tls >ellci\Msh triPen, wilh cojiiitr brown 

 sb.iilis mil ill iikiii..'- Ill lliiiii.li.i I. .Iilisli brown, 

 itti. ulit. 1 111 11 ml 111 1 N II « Il -I I I li ml A hy- 

 brid 111 iHi I II ^ /' I I ^ ' ' It IS mter- 

 meiliit lMt«.. 11 th. I II nt. I ut int. I- In 111 s <a»da 

 tiiin li\ Its acute bracts .uiii u.irrower hs, tiom *'. 

 Pea I Of i by the transverse stammoiie anil hairy ovary. 

 Gn 1, p 491 F 1&74, p. 57. — The follo-nmg varieties are 

 also distinguished in cultivation. 61egans, rub^Bcens, 

 supfirbum. 



17 Boissieriinum, Reichb. f. (Cyptipednim reticuU 

 fi()«, Keichb f) Plant ot vigorous habit hs about.! 

 ft. long, aoiimmate- scape fe-n tld or sometimes pani- 

 culate, 3-7 Hd Hs ot peculiar light iireen tints with i 



flexed part ot tilt lip mci w iili ^< tm I i \\ i | miIm 



mai-gins of tlic s, p lU <.\ im .Inkli i wili _m.ii 

 apex and ribs iippc i s. p ils li.,ul etc I im . . I ili \ii\ 

 crisp; lower sepals oblong, about equal to the labelluni, 

 crisp; petals spreading, long-linear, twisted and \ery 

 crisp on the margins. Peru. G C. III. 1.143; 21:54, 55. 

 G F 4 005 



18 Klotzschianum, Re ic hb f {( iipiipedium Schom- 

 huiql I iiiiim Klcit/s, li III 1,1 1 lib I I Lvs linear, 6- 

 12 111 l"ii_' s. inch ' 111 «il luid, keeled: scape 

 lon.,'cr til 111 til hs 1 II I I. ill 2-1 fld , doisal 



(Cyptipidium Pearcei, 



fill Lmdl & Past ) Lvs 1 



like tufts from the long 



SELF-HEAL. See Brunella. 



SELF- STERILITY OF FRUITS. Self -sterility may 

 bi- roimlily ilc-iini-d as the inability of a given plant to 

 produce fertile seeds when pollinated with its own pol- 

 len. With the i-apid strides in plant-breeding, propaga- 

 tion and cultivation, self-sterility and sterility have be- 

 come important suljjeets in determining the value and 

 adaptability of new varieties to the various needs and 

 purposes of the planter. 



The study of self-sterility in more recent years has 

 been confined mostly to fruit trees and small fruits, 

 and has been c-i.iicluotcd Icy a number of experiment 

 statu. a V,.. 11,11-, ■Ihi li-i 1.1 srli-sii-nlci and unisexual 

 vaiiiii. - II' < "• : .! ' r.H- applis, liiai-s. plums. 



turn, resembling the for 

 much more vigorous, wit 

 over 2 ft. long: scape ove 



terile and partially self- 

 vhich tend to produce 

 s may be briefly sum- 



changing the time of ripening of the pollen and ot tlic 

 receptivity of the stigma. 



(21 Asexual propagation tends to reduce the impor 

 tance of seed production, and to transmit and fur 



