CRUCIFERAE 93 



Visitors. — I observed the following on the Island of Fohr. — 



Diptera. {a) Muscidae : i . Anthomyia sp. 5 ; 2. Sepsis sp.; 3. Themira minor 



Hal. (3) Syrphidae : 4. Syritta pipiens Z., all skg. 



Von Fricken in Westphalia and East Prussia (also Redtenbacher at Vienna) 



observed the Chrysomelid Colaphus sophiae Schall. : and Schiner noted Thereva 



anilis Z. in Austria. 



214. S. austriacum Jacq. — 



Visitors. — Loew observed the following in the Berlin Botanic Garden. — 

 A. Diptera. Syrphidae: i. Eristalis arbustorum Z. ; 2. E. nemorum Z. ; 3. 

 Pipiza festiva Mg., skg. ; 4. Syritta pipiens Z. ; 5. Syrphus albostriatus Fall., skg. 

 B. Hymenoptera. Apidae : 6. Andrena dorsata J^. 5, skg. and po-cltg. ; 7. A, 

 nitida Fourc. 5, po-cltg. ; 8. A. propinqua Schenck 5, skg. and po-cltg. ; 9. A. tibialis 

 A'. 5, skg. and po-cltg. ; 10. Apis mellifica Z. 5, skg. ; 11. Melecta armata Pz. 5, skg. j 

 12. Nomada lineola Pz. 5, skg.; 13. Osmia caerulescens Z. §, skg. and po-cltg.; 

 14. O. fulviventris Pz. S and 5, skg. 



215. S. orientate L. ( = S. Columnae/af^.). — 



Visitors. — Friese observed the following Apidae at Fiume (F.), Trieste (T.), 

 and in Hungary (H.). — 



I. Andrena carbonaria Z., not infrequent (F.) ; 2. A. decorata Sm. (H.); 3. A. 

 hypopolia Per. (H., freq. F.) ; 4. A. hmbata Ev. (H.); 5. A. morio Brulle'^P., freq. 

 H.) ; 6. A. nobilis Mor. 5 and S (H.), not infrequent ; 7. A. scita Ev. (H.), not 

 infrequent; 8. A. sisymbrii Friese, infrequent (F.) ; 9. A. suerinensis Friese (H.), not 

 infrequent; 10. A. tibialis A"., 2nd generation (H.) ; 11. Nomada chrysopyga Mor. 

 (H.), freq. ; 12. Osmia bisulca Gersi, (F., H.) ; 13. O. fulviventris Pz.; 14. O. panzeri 

 Mor. (F., H.), freq.; 15. O.solskyi Mor. (F.). 



216. S. acutangulum DC. ( = S. austriacum, var. acutangulum Koch.). — 

 Visitors. — MacLeod — in the Pyrenees— noticed 5 short-tongued Hymenoptera, 



a Lepidopterid, 3 beetles, 7 hover-flies, a midge, 2 Empidae, and 7 Muscidae (B. 

 Jaarb. Dodonaea, Ghent, vi, 1894, pp. 392-3). 



217. S. pinnatifidum DC. — 



Visitors. — MacLeod observed Halictus in the Pyrenees (op. cit., p. 393). 



218. S. strictissimum L. — • 



Visitors. — Loew observed the honey-bee skg. in the Berlin Botanic Garden. 



60. Stenophragma Celak. 



Flowers small, white, homogamous to slightly protogynous, with half-concealed 

 nectar. There are six nectaries at the insertions of the stamens, but only the two at 

 the bases of the short ones are functional, the other four being vestigial. 



219. S. Thalianum Celak. (= Sisymbrium Thalianum Gaud.). (Herm. Miiller, 

 'Weit. Beob.,' II, pp. 202-3; Kerner, 'Nat. Hist. PI.,' Eng. Ed. i, II; Kirchner, 

 'Flora V. Stuttgart,' p. 294; Warnstorf, Verh. bot. Ver., Berlin, xxxviii, 1896 ; Knuth,. 

 'Bl. u. Insekt. a. d. nordfr. Ins.,' p. 27.) — The secretion of the nectaries at the bases 

 of the short stamens coUecls in the sepals underneath them, but sometimes nectar is 

 absent. The pollen-covered surfaces of the anthers of the long stamens surround 

 the stigma, so that automatic self-poUination is inevitable. Kirchner states that 

 the stamens are variable : as a rule all six are present, the length of the short ones 

 being four-fifths and one-third that of the long ones, but not infrequently both short 



