314 Trans. Acad. Sct. of St. Louis 
Hovustonia Rorunpirouia, Ma., W.—The flowers often 
appear as mats a foot or more in extent, and are quite 
attractive to insects. The corolla is salver-form, with 
four ovate white lobes, the tube yellowish. The tube is 
6 mm. long and nectar is secreted at its base. | 
In the short-styled form the stigma stands in the 
throat, while the stamens rise 3 mm. above. The stamens 
are separated (3 to 4 mm.), so as to apply pollen to the 
heads or other parts of the visitors, where it will be read- 
ily received by the stigma of the long-styled flower. 
The long-styled form can only deposit its pollen on the 
tongues of the visitors, where it will touch the stigma of 
the short-styled form. The stigma rises 3 to 4 mm. above 
the mouth, the anthers being included. The throat is 
narrowed by the introrse anthers. Ja. 5 to Ap. 26, 28 
visitors observed, Ja. 30-F 24. 
SHorRT-ToNGUED Brzs (1)—Halict.: Agapostemon ¢. 
Orner Hymenoptera (1)—Scoli.: Campsomeris plumipes. 
Lepmortera (26)—Dana.: Danaus archippus; 7 espert.: 
Goniurus, Hylephila, Lerodea, Polites baracoa, P. bret- 
tus, Prenes, Thanaos juvenalis, T. martialis, T. terentius, 
Thorybes; Lycaen.: Strymon cecrops, 8. melinus; Nym- 
phal.: Dione, Junonia, Phyciodes, Vanessa virginiensis; 
Papilion.: Papilio marcellus, P. philenor, P. troilus ; 
Pier.: Catopsilia, Eurema delia, E. euterpe, E. nicippe, 
Zerene ; Rhiodin.: Calephelis. 
RUTACEAE. 
Facara Cuava-Hercuuis, Mis., Y—Mr. 16-Ap. 16; first 
1000 individuals taken on staminate flowers, Mr. 17-AP. 
2, follow: 
Lone-toneuep Brzs (171)—Anthophor. 3, Ap. 128, 
Bomb. 3, Epeol. 1, Megachil. 28, Nomad. 3, Stelid. 3, 
