agfi BIBLIOGRAPHY OF 



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578. Observations on bees collected at Las Vegas, New Mexico, and in the adjacent 



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580. Flowers and Insects in New Mexico. Amer. Nat., Boston (Mass.), xxxvi, 1902, 



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581. A variable Larkspur. [Delphinium sapellonis sp. nov. in New Mexico.] Bot. 



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582. A new Heliotropium (H. xerophilum). Op. cit., xxxiii, 1902, pp. 378-9. 



583. Material for Natural Selection. [Verbesina exauriculata with 7-21 ray-florets.] 



Nature, London, Ixvi, 1902, pp. 607-8. — Ab. : Bot. Centralbl., Cassel, xcii, 

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584. Some North American Bees : Osmia and Triepeolus. [Osmia (Gnathosmia) 



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585. Insect Visitors of Scrophularia. Torreya, Torrey Bot. CI., New York, iii, 1903, 



p. 40. 



586. Cockerell, T. D. A., and Pox, Wm. J. New fossorial Hymenoptera from New 



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587. Cohen, P. W. On the Abundance of Vanessa ilea in Wellington during Season 



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588. Cohii,Ferd. Ober die Caprification der Sykomoren. Jahresber. Ges. vaterl. Cultur, 



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589. Coker, W. C. On the prothallus of Taxodium distichum. Bot. Gaz., Chicago (111.), 



xxix, 1900, p. 140. 



590. Notes on the Gametophyte and Embryo of Podocarpus. Op. cit., xxxiii, 1902, 



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591. On the Gametophyte and Embryo of Taxodium. Cont. Bot. Lab., Johns Hopkins 



Univ., Baltimore (Md.), No. i. Bot. Gaz., Chicago (IlL), xxxvi, 1903, pp. I-27, 

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592. Cole, Miss Smma J. Cleistogamous Flowers on Solea concolor. Asa Gray 



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595. Comber, Thomas. Fertilisation of Fumariaceae. Nature, London, ix, 1874, p. 484. 



596. Insects and Colour in Flowers. Op. cit., xi, 1875, p. 47. 



597. Comes, Orazio. Studii suUa impoUinazione in alcune piante. Napoli, 1874. 



598. Continuazione degli studii suUa impoUinazione. Rend. Ace sc, Napoli, xiv, 1873, 



pp. 64-71. 



