80 Universih/ of ('olifor)tin I'lihlirations in Botany [Vol. 7 



6. Collected in Marin County, 191G; rootstock in pot 4G oi" the 

 T'rillium cultures in the University of California Botanical Garden. 

 This rootstock bore two tlowering .slioots, one of which was normal in 

 every respect; the condition of the other is shown in phitc 1."). (i<^ure 1. 

 As will be noted, (he leaves were normal in number and they were 

 also normal as to shape and si/c. while the three sepals were partially 

 petaloid. There were six stamens, all normally provided with the long 

 filaments characteristic of plants from tliis locality. The pistil was 

 also normally formed and ovule-bearing. The striking teratological 

 condition is seen in the petals. They were reduced below the sepals 

 in size, and along their rolled edges ovules were bor-ne. while modified 

 stylar and stigmatic tissue was present along the inner surfaces. The 

 petals of nvimber 5 above were identical except that no trace of stylar 

 and stigmatic tissue was found. The cross-section of the modified 

 petal of number 5 shown in plate 17. a, is applicable as de-scriptixc of 

 the condition found here (cf. ITalsted. 1891). 



7. Collected in the Berkeley Hills by Dr. Brandt and Professor 

 R. R. Gates, 1916; rootstock in pot 40. This rootstock bore six shoots, 

 two of which were entirely normal and four exhibited abnormal modi- 

 fications in the way of a distinctly fasciated condition and a more or 

 less corresponding increase in number of parts in each whorl in all 

 but one case. 



In all four abnormal shoots, the stem was quite strongly flattened 

 and often distinctly ridged. In one case a small sixth leaf was inserted 

 beloM" the main whorl of five leaves and from it a ridge or petiole ran 

 down the entire length of the stem. 



Two shoots bore five leaves, four sepals, four petals, eight stamens, 

 and from four to six styles and stigmas, while the ovary was usually 

 composed of one large cell with from six to eight parietal placentae. 

 A third abnormal shoot was similar with the exception of the presence 

 of a sixth leaf noted above. There were various more or h^ss unim- 

 portant modifications of organs, such as the union of two stamens, a 

 partially petaloid stamen, a petal curved and anther-bearing along one 

 edge. In one case there appeared to l)e two distinct whorls of leaves 

 distinguished by size as well as heiglit of insertion. One df these 

 three shoots is figured in plate 14. figure 2, and the natui-c of the 

 justils is shown in ])late 17. & and c. 



The fourtii ahnormal shoot of tliis rootstock is figured in plate 

 l;i At the toj), along the i-idgc formed by the mucli-fiattened 

 stem, fourteen leaves were borne, and just bi'low a complete three- 



