468 MR. E. A. NEWELL ARBER ON THE 
In Lonicera alpigena the bracteoles are small, while in Z. 
oblongifolia, Hook., and L. microphylla, Will., they are usually 
absent altogether. In other species possessing the same type of 
synanthy they form by their union a well-developed bracteolar 
sheath, which may be quite two-thirds as long as the ovaries, 
e.g. L. angustifolia, Wall. * 
In the following species the synanthy is complete or nearly 
complete both in the flowers and fruits :— 
Type of Lonicera alpigena, L. 
. angustifolia, Wall. 
. calcarata, Hemsl.f 
. caucasica, Pall.t 
- Chamissoi, Bunge. 
. conjugalis, Kell. 
. discolor, Lindl. 
Glehni, F. Schmidt. 
. glutinosa, Vis. 
. Kesselringi, Regel §. 
. microphylla, Willd. 
. oblongifolia, Hook. 
. orientalis, Lam. || 
. parvifolia, Edgew. 
. Schmitziana, Dipp.4] 
. szechuanica, Batal. 
. tangutica, Maxim. 
. tomentella, Hook. f. & Thoms. 
NHANES RRR 
False Synanthy. 
In many species of Lonicera the bracteoles are well developed 
and more or less completely united into a sheath, by the fusion 
of the four bracteoles of the cyme in the median and lateral 
planes. This bracteolar sheath may completely envelop the 
ovaries, especially in species in which the bracteoles are all 
united. In this case the external appearance of the flowers and 
* Koehne (1893), p. 543. 
+ Hemsley (1901), pl. 2682. 
¢ Jaubert & Spach (1842), tab. 72, p. 135. 
§ Kuehne (1893), p. 548. I have not seen this species. 
|| Jaubert & Spach (1842), tab. 71, p. 134. 
“| Koehne (1893), p. 548. I have not seen this species. 
