140 MISSOURI BOTANICAL GARDEN. 
The foregoing facts preclude any conclusions concerning 
the influence of environmental conditions, until careful 
statistical studies have been made. These must take into 
consideration ancestry as well as environment. 
_ PASSIFLORA. 
A number of observations have been published on ab- 
normal fruits in Passiflora, but since all the work has been 
done independently, I take this opportunity of bringing 
together the literature and of presenting further observa- 
Z tions made upon a much larger series of material than has 
3 been examined heretofore. 
Clos* describes the prolification of the fruit of P. 
gracilis. He found two types. In one there were three 
pedicels each with three styles and in the other a single 
pedicel terminated by three styles. Salterf describes 
an abnormality in the ovules of P. palmata and P. caeru- 
lea. Lindberg { records proliferous fruits in P. gracilis. 
His descriptions agree with those of other authors. 
Bernoulli § records a case of prolification in P. serratistt- 
pula in which a slightly abnormal flower was produced in 
an apparently normal fruit. He also states that in the 
: section Granadilla, a short, filamentous projection is fre- 
A quently to be seen at the bottom of a fruit-cavity. Mas- 
f ters || describes a fruit of P. quadrangularis ‘* wherein 
: | small flower-buds were found springing from the placentas 
intermixed with the seeds.’’ Hildebrand { notes fruits with 
hE ea ORME, ORE OS 
¥ A ‘ é 
* Clos,D.. Mém, Acad. Imp. Sci. Inscript. Belles- Lettres, Toulouse, 
V. 83113. 1859. 
t+ Salter, S.I. Trans. Linn. Soc. 243 148-150. pl. 24. 1863. 
¢ Lindberg, S. O. Ofvers. Finska Vetensk.-Soc. Férh. 103 15-16. 
1867. 
§ Bernoulli,G. Bot. Zeit. 27 321-23, 1869. 
|| Masters, M. T. Trans. Linn. Soc. 273607. 1871. 
{ Hildebrand, F. Bot. Centralbl. 9: 401-404. pl. 7. 1882. 
RRR CCT nS Re Te eee ee 
al ca te bp ’ . é t ge , ‘ * phe on re Petit Se pry 
