ROSACEAE 



295 



Parmentier, Paul. Rerherches sur Ics glaiidcs |)6tiolaires de 



(|Ufk|ues amygdalces. Paris. [IDOO.] 

 Pechoutre, F. Contribution a I'etude du developpement de 



l'(jvule et de la graine des rosacces. Paris. 1902. 



Potonie, Henry, tiber bedeutung der steinkorper ini frucht- 



flci.sche der birnen und der pomazeen &v. iil)erhaupt. 

 Kosmos, 1S80, iv, heft 7, pp. 33-36. 

 Prodinger, Marie. Da.s periderm der rosaceen in systema- 



ti.sclicr bezielunig. Wien. 1908. 

 [Savatier, Alexandre. Etude sur les Pyrus, Malu.s ct Prunus. 



Paris. 1SS3.] 

 Wenzig, Thcodor. Neue beobachtungen in der familie der 



pomaceen. (Berlin. 1880-82.] 



Nova ex Poniaceis. [Cassell. 1888.] 



AGRIMONIA 



Robinson, B. L. Further ncjtes cm I he acrimonies. [New 

 Vc.rk. 1901.1 



ALCHEMILLA 



Buser, Robert, editor. Notes sur plusieurs alchiniilles cri- 

 tiques ou nouvelles distribuees en 1893 dans le Flora selecta 

 de Ch. Magnier. (Saint-Quentin. 1893.] 



AMELANCHIER 



Fernald, M. L. Thiee neu western |)lants [Carcx Blankin- 

 shipii, Amelanchier Cusickii, Castilleia Dixonii. Berkeley, 

 Cal. 1899]. 



Koehne, Eniil. Amelanchier oxyodon n. sp. [Berlin. 1902.) 



CHAENOMELES 



Burgerstein, Alfred. C^ydnnia sinensis. [Wien. 1901.] 



CLIFFORTIA 

 Candolle, A. P. de. Note sur le feuillage des Cliffortia. 



Arm. sci. nal., 1824, i. 447^50. 



COTONEASTER 



Bois, D^'sire. Une nouvelle espece de Cotoneaster du Yun- 

 nan, le Cotoneaster Francheti. [Paris. 1902.] 



COWANIA 



Don, David. Description of Cowania, a new genus of plants, 

 and of a new species of Sieversia. 



Trans. Linn. soc. Lond., 182.5, xiv. .573-577. 



CRATAEGUS 



Ashe, W. W. East American thorns. [Raleigh, dr.. 1904.] 



New east American species of Crataegus. [Raleigh, 



etc. 1900.] 



New east American thorns. [Raleigh, etc. 1902.] 



New North American thorns. [Raleigh, cic. 1903.] 



Some east American species of Crataegus. 2 pam. 



[Raleigh, f/c. 1900-01] 



Some new Pennsylvanian thorns. [Pittsburgh. 



1902.] 



Some new species of the genus Crataegus and notes 



on some dichotomous Panicums. [West Raleigh, N. C. 

 lUOO.j 



Suggestions for the study of the hawthorns. [Wash- 

 ington. 1901.1 



Beadle, C. D. Studies of Crataegus. i, ii. Chicago. 



1899-[1900]. 

 Brown, H. B. The genus Crataegus, with some theories 



concerning the origin of its species. (New York. 1910.] 



Callender, Robert. A practical essay on the raising and 

 management of the Crataegus oxyacantha, or common white 

 thorn for hedges. Newcastle upon Tyne. 1785. 



[Campbell, Robert.] Notes on a collection of Crataegus 

 made in the province of Quebec near Montreal; New or 



.American trees. By C. S. Sargent. 

 1902.] 

 The genus Crataegus in Colorado. 



little known North 



[Review. Montreal. 

 Cockerell, T. D. A. 



[Boulder. 1907.1 

 Dunbar, .John. The American hawthornes. 



Technical educninr and inventor, Oct. 1910, pp. 46-49. 



Eggleston, \\\ W. The Crataegi of Mexico and Central 

 America. New York. 1909. 



" Bibliography of Mcxicuu and Central American Crataegi." pp. 512- 

 514. 



Crataegus (Tourn.) L. Sp. PI. 475. 1753. n. p. 



[1913.] 



Crata'gus of Dutchess County, New York. (New 



York. 1906.1 



Crataegus in New Mexico. (New York. 1907.) 



New North American Crataegi. (New York. 1907. | 



New North American Crataegi. [New York. 1909.] 



Engelmann, George. The black-fruited Cratffigi and a new 



species. 



Botanical gazelle. 1882, vii, 127-129. 



Gandoger, Michel. Revision du genre Crataegus, pour les 



sections des C. oxyacantha L. et oxyacanthoides Thuill. 



[Paris. 1871.] 

 Gomer, F. A. Der weissdornzaun von Crataegus monogyna. 



3° aufl. Berlin. 1888. 

 Groh, Herbert . Preliminary list of the Cratsegi of the Ottawa 



district. [Ottawa. 1910.]' 

 Gruber, C. L. Hawthorns of Berks County, Pa. i. [Ham- 



Ijurg? 1903.] 



Crataegus in Berks County, ii. 



Proceedings of the Berks County natural science club. 



The same. iii. [New York. 1905.] 



Havens, J. N. Experiments and observations on the culture 

 of white thorn for hedges. 



Trans. Soc. N. Y. promol. axjric., arts nianuj., 1801, pp. 214-230. 



Kaleniczenko, Jean. Description monographique des di- 

 verses especes du genre Crataegus cultivces aux environs de 

 Kharkow. 



Bull. Soc. imper. nal. Moscou, 1874, new ser., xlviii, pt. 2, pp. 1-62. 



Keller, Paul. Der weissdornzaun. Weimar. 1883. 

 Koch, Karl. Die weissdorn- und mispel-arten (Crataegus 



und Mespilus). Berlin. 18.54. 

 Koehne, Emil. Bemerkungen zu .1. Bornmiillers aufsatz 



iiber Crataegus tanacetifolia (Lam.) Pcrs. 

 GartenJIora, 1894, xliii, 291-292. 



Zwei pfropfbastarde von Crataegus monogyna und 



Me.spilus germanica. (Berlin. 1901.] 



Lange, ,Johan. Revisio specierum generis Cratsgi imprimis 

 earum quiv in hortis Dania- coluntur. Ki0benhavn. 1897. 



"LiterQtur-fortegncIse," p. iv. 



Leavitt, R. G. The defences of the cock-spur thorn. (Lan- 

 caster, Pa., etc. 1905.] 



Main, T. Process for germinating the seeds of the American 

 hedgethorn and Pyracantha. 



Massachusclls aijricultural repository and journal, 1811, pp. 195-190. 



Mouillefert, Pierre. Note sur un nouveau Crataegus et un 



nouveau Cotoneaster. [Paris. 1890.] 

 Ramaley, Francis. New Colorado species of Crataegus. 



[Chicago. 1908.] 

 and Dodds, G. S. Two imperfectly known species of 



Crataegus. (New York. 1908.] 

 Sargent, C. S. American Crataegi in the Species plantarum 



of Linnaeus. [Boston, etc. 1909.] 



Crataegi of Ontario. [Guelph. 1907.] 



Crataegus in eastern Pennsylvania. (Philadelphia. 



1905.] 



1910.] 



Crataegus in Pennsylvania. 

 Crataegus in Missouri, [i], ii. 



ii. [Philadelphia. 

 (St. Louis. 1908-12.) 



