PART III. | THE MECHANISMS OF FLOWERS. 351 
() Sphegide : (4) Psammophila affinis, K., s. (proboscis 5 mm. long). B. 
. D iptera—(a) Empide: (5) Empis livida, L., s., ab.; (6) Syrphide: (6) 
Eristalis arbustorum, L., f.p. ; (7) Rhingia rostrata, L., s. C. Lepidoptera— 
Noctue: (8) Plusia gamma, L.,s. See also No 590, 11. 
Tribe Mutisiacee. 
 Chuquiraga insignis, R. Br.—The long, tubular florets of this 
“Composite, which grows on the summits of the Andes (Pichincha), 
are visited, according to Professor Jameson, by a humming-bird 
ie Be sotrochilus Perk eakany. (Delpino, No. 185.) 
Ve ene cleistogamic flowers of Anandria were known to Linneus 
. von Mohl, No. 531). 
Tribe Cichoriacee. 
260. CicHoriuM IntTysBus, L.—The capitula are closed in 
rainy weather, but expand in sunshine to form blue disks 30. mm. 
and upwards in diameter. Each floret has a tube 3 mm. long and 
a limb 13 mm. long, and this immense development of the limb 
compensates for the small number of florets in each capitulum. 
‘The structure of the florets agrees with that in Leontodon and 
Hieracium, except that the branches of the style are much more 
Erved, each making one to two spiral turns; self-fertilisation in 
ence of insects is thus much more easily effected: 
Visitors: A. Hymenoptera—Apide: (1) Apis mellifica, L. $,s., ab. ; (2) 
Andrena fulvicrus, K. 9, c.p. ; (3) Halictus quadricinctus, F. ¢; (4) Nitidi- 
sculus, K. ¢; (5) H. rubicundus, Chr. ¢; (6) H. longulus, Sm. 9; (7) H. 
Ibipes, F. ¢, all s. ; (8) Osmia spinulosa, K. 9,8. and e.p. (Thur.), not rare. 
iB Diptera—(a) Syrphide: (9) Syritta pipiens, L. ; (10) Eristalis tenax, L., 
be h species s. and c.p.; (b) Conopide: (11) Sicus ferrugineus, L.,s. C. 
' ue pidoptera—Rhopalocera : (12) Colias hyale, L.,s. (Thur.). D. Coleoptera— 
Malacodermata : (13) Malachius bipustulatus, F., fp., ab. An additional list 
of nine bees is given in No. 590, II. 
3 Hyoseris radiata, L., is visited by MMegachile centuncularis 
(Delpino, No. 178, p. 125). 
_ 261. LApsANA communis, L.—The capitulum consists of eight 
'to seventeen florets, and expands to a yellow disk 8 to 10 mm. in 
) diameter. In each floret the tube is 14 to 2} mm. long, and the 
‘limb 4to 6 mm.long. The capitula are solitary and comparatively 
| small; they are therefore not very conspicuous, and insect-visits — 
are very few. In absence of insects, self-fertilisation takes place 
larly, and it is doubtless effective, since the capitula are without 
