236 THE FERTILISATION OF FLOWERS. [PART III. | 
(10) Anthomyia sp., fp. B. Hymenoptera—Apide : (11) Halictus, small 
species, 2, c.p. 
146. PoTErIuM SancuisorBA, L., is anemophilous, with red 
penicillate stigmas, and anthers hanging out of the flower on long 
thin filaments. On June 27, 1869, I saw a wasp, Odynerus 
parietum, L. 3, settle on the flower, attracted probably by the 
red colour; but after a short and vain search it flew away again. 
147, SANGUISORBA OFFICINALIS, L.—The flowers are devoid 
of petals, whose function devolves entirely upon the calyx. The 
Fic. 77.—Sanguisor ba officinalis, L. 
A —Flower, viewed from above. 
B.—Ditto, from the side. 
C.—Ditto, in longitudinal section 
D.—A sepal, from the inside. (x 7.) 
calyx, in its lowest! part, surrounds the ovary ; its middle portio 2 
constituting a fleshy ring around the base of the style, secretes 
honey ; and its uppermost part spreads out into four dark purple 
sepaline lobes. Anthers (a) and stigmas (st) are developed simul. 
taneously. The divided stigma resembles that of an anemophilous 
flower, and is doubtless a character inherited from an anemophilous 
. ancestor resembling Poteriwm (609). : 
Tribe Rosew. 
148, Rosa cAntnA, L.—-The upper border of the calyx-tube 
internal to the attachment of the stamens, is provided with a thick 
fleshy ring, which closely surrounds the styles, letting the stigmas 
only protrude. The flowers seem either to secrete no honey at ¢ 
1 'The lowest and middle part really belong to the receptacular tube. 
