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Show 16 IIETERO TYLED Dll\10RPHIO PLANTS. CnaP. J. i g 1 1 ut r ; in the short-sty l~d i ~ is dep.ress d n h u1111 it, s that the longitudinal axis of the f( nn r i Ill ti1n s nearly double that of th latter. lth UO'h Ill what variable in shape, one dif£ r n e i I r i t ~nt, n m ly, in roughnes~: in s?me p ci-n1 11 t r ·fully c mpared, the pap1llm which r n 1 r th ti()'nu r u()'h w re in the long-styled f rm from twi t thri • as l ng as in the short-sty l d. The ( nth r cl n t di:ffi r in size in the two forms, w hi h n1 nti n au e this is the case with son1e het ro- . tyl h nt . The most r markable difi r nc is in th p ll .ll-0'1'< ins. I m asured with the Inicrom t r n1· n y p im n , both dry and wet, tak n from plant r winO' in di:ffi r nt situations, and always f und a pal1· bl eli~ r nee. The grains distend d with wat r fr m th hort-styl d flowers were about · 038 m1n. (1 - II f ( n inch) in diain t r, whilst those from th 1 ~0g- tyl d w re about ·0254 mm. ( 70 7 00 of an inch), whi h i in the ratio of 100 to 67. The poll n-arains, th r £ r fr m the l nger stamens of the short- tyl cl pt inl y larg r than those from the short r t I n f the long- tyled. vVhen examined dry, th Inall r grains ar seen under a low power t b 1n r transparent than the larger grains, an<l a11 ar ntly in a great r degree than can be ac-unt d f r by their less diameter. There is als a diffi r n in sha1 , th grains from the short- ty l d rlant b inO' n arly sph rical, those from th lonO'- tyl d b ing blong with the angles round 'cl; thi diff r n eli app ars wh n the grains are eli t nd d with wat r. The long-sty 1 d I lants gcn rally t nd t ft w r a littl before the short-styl d: for in tanc I ha tw I plants of ach f rm gr wing in s parate p t n l tr at d in every r pect alik ; and at th tim wh n only a single short-styled plant wa in JUP. l. PI I. l L~ YE I~. 17 fl w r y ll f th 1 ha l . ·1 · n 1 1 t h ir . pr •s ntl." that th ltu·o· ·r. Th · nntuh •r n11n1 < r >f fl w 't'. • ~ tul tignu ' n l th I •ng-th of th ·. I ·i, ll in th(., .'hort-:t ·I ·<l f ll'lll, "ith an tran:iti Jll~ I . .'tato • lH't\\ · ·n ~h tw. funn · in plant.· growing in ~ . ·tat ~ of untnr(•. h r I n · ·r th .'light · <l HI t nnd< r whic·lt fc nn a I lunt ouo·ht t L ~ Iu : · 1. ' h • tw kind.' f fluw<•r: ; rt ~ t. Hi8t. R i ' ,' July 1 G2, p. 237. |