1782 TENNESSEE 



tioii rii»,lisli wall uts japeishe'l pecans. Tara^ 



I ( ti Its II i I II u St persimmon!, gratted on tL 

 toi I I 1 K I ^ \TTS 



TEN CLOCK tt! jalutn umbellaiun 



TEN WEEKS STOCK M UOiiola xncana \m in> , 



TERATOLOGY 

 lokel u 



d b\ 



1 s niaj be i 

 1 e lived 1 

 Iliiis tl 



common as li 



Pen m ilf i 

 tl e oni 1 1 

 1 flovei 1 



tlie\ I t Uokel 



drill ! ft I 

 apart in the dr 1 

 sinte 1 1 nati 

 of M MC ai i 



seeci rareiy ma 



Flo 



id a. 



F. Lamson Scribner. 



TEPHBdSIA 



ored, hoary; n 

 Lefiumindsie. 1 

 hardy perennial 



-^ 



2480. Extra free pistils of 1 



oranee persisting ( 



I fruit. 



The racemes 



1,-li^li works th 

 ■.niilHi, a Mexici 



horticultural valur. I'.,i- fiillir ;r . -, i,r:iv's 



Manual. B.B. i;:'_".iJ. I'.. I,. K'^Lin i i. .iihe 



North American s|.r,-i.-. in 11. .t. i;,. , s, ,,i . i-vi, pp. 

 193-202, and Miss Vails revision of the .Nonh American 

 species of Cracca in Bull. Torr. Bot. Club 22:25, 20. 



Virginiina, Pers. Goat's Rue. Catgvt. Wild 

 Sweet Pea. Hoary Pea. Silky-villous, erect, 1-2 ft. 

 high: If ts. 17-29, linear-oblong. June, July. Dry sandy 

 soil, New Eng. to Minn., south to Fla. and Mex. B.B. 

 2:292.— Roots long, slender and very tough. ^_ ]yj_ 



TERATOLOGY: that part of the biological sciences 

 which is concerned with unusual forms of the whole 

 body or any of its organs. These, by comparison with 

 the normal forms, are called malformations or mon- 

 strosities. Malformations among plants are due to a 

 disturbance of the ordinary cou.-se of the growth and 

 development of the organs. Such a derangement of 



>en malformation and variation, except arbi- 

 hen the difference between the ordinary and 

 Ills is very marked, and particularly when 

 •n'gives rise to grotesque forms, having al- 

 ions,one speaks of malformation rather than 

 Malformations have been fuuml in all 





the ferns ami liMwiiiiL' phmi-. A ■■ ■ t ^.'^i' 



have been n-.'i.r-.l.-.l ; I'.^nzi- i ^ir lul..- ■ . .i! .-r.l 



data of nioiiMn.siii,.s in mor.- iliiin i. r-.n-, nii.l 



the list has been aiignieute.l -in- Hi' i iiMnaiiuuuf 



his work. Classiticatiou of -n. ! : . i,.l .livcrse 



phenomena is a most diftimh . ,n,.lves an 



extensive technical terminnli^- I; i. . . a few of 

 the more important categorii-s cai. i .. namimicd. 



1. Alteration in the Numbek and Sue of Organs. 

 1. Pleiomerti is the term applied to the increase in the 

 number of leaf-like organs. The number of members 

 of a whorl may be increased; or the number of whorls: 

 or the number of distributed organs niay JMicnn- 

 greater than usual. Double flowers .ilt. n sii,,« plii- 



omery. Fig. 2003. Extra free pistils ..i i|, anm-, 



persisting even in the fruit, are sbuwn in I i-. Jlsn. 

 More regular polycarpy appears oca- i ■ i ih. 



tomato, and constantly in the "two si i ~i 



Valery). It is a fixed race character in i \ ,! .n 



or Navel orange, in which it is ass.i.-i, >\imi . . ,i 



lessness. A similar fxainplo nf poh-.-arpv is slmwn at 

 Fig. 2481, in which th^ aluM.niKil i.-r..wth is an exten- 

 sion of the axis of f,'r..\vtli wiili a.l.litional carpels. 



2. Abnormally proiiisr l,r,iii,-hiii<i nf the stem is often 

 produced by a fungous parasite. The branches are 

 usually irregular and more or less fasciate, producing 

 what is called "witch brooms." These are not uncom- 



