548 BOTANICAL SURVEY OF DISMAL SWAMP REGION. 



Engler, A., and Prantl, K. Die nattirliche Pflanzenfamilien. 1889—. 

 Fliche, P., et Grandeau, L. Recherches chimiques et physiologiques sur la 



bruyere commune. Ann. de la Science Agronomique. v. 1 , pp. 394-411. 1884. 

 Goerel, K. Pflanzenbiologische Schilderungen. 1889-1891. 

 Gray, Asa. Manual of the botany of the northern United States and Canada. 



Ed. 6. 1890. 

 Gray, Asa. Synoptical flora of North America. 

 Gui(iNARf), L., find Colin, C. Sur la presence de reservoirs a gomme chez les 



Rhamuces. Bull. Soc. Bot. de France, v. 35, pp. 325-327. 1888. 

 Harerlandt, G. Physiologische Pflanzenanatomie im Grundriss dargestellt. 



1884. Ed. 2, 1896. 

 Herring, W. Uber die Assimilations organe der Gattung Baccbaria. Engler 's 



Bot. Jahrb. , v. 27, pp. 446-484. 1899. 

 HEIDEN, H. Anatomische Charakteristik der Combretaoeen. Bot. Centralbl., 



vol. 55, pp. 353-360, 385-391 : and v. 56. pp. 1-12, 65-75, 129-136, 163-170. 193-200, 



225-230, table. 1893. 

 Heller, A. A. Plants from Virginia new to Gray"s Manual range, with notes 



on other species. Bull. Torr. Bot. Club, v. 21, pp. 21-27. L894. 

 Holle, G. Beitriige zur Anatomie der Saxifragaceen und deren systematische 



Verwerthung. Bot. Centralbl., v. 53, pp. 1-9, 33-41, 65-70, 161-169, 209-222. 



1893. 

 Hollick, Arthur. On the autumn flora of southeastern Virginia. Mem. Torr. 



Bot. Club, v. 2, pp. 54-56. 1890. 

 Holm, Thkoimir. JuncusrepensMichx. A morphological and anatomical study. 



Bull. Torr. Bot. Club, v. 26, pp. 359-364, pi. 363. 1899. 

 Kkaknkv, T. H. The Lower Austral element in the flora of the Southern Appa- 

 lachian region. Science, n. ser.. vol. 12, pp. 830-842. 1900. 

 Kearney, T. H. The plant covering of Ocracoke Island; an ecological study in 



the North Carolina strand vegetation. Contr. CJ. S. Nat. Herb., v. 5, pp. 



261-319. 1900. 

 Lalanne, G. Recherches sur les caracteres anatomiques des feuilles persistant* s 



des Dicotyledones. 1890. 

 Latrobe, B. II. Memoir on the sand hills of Cape Henry, in Virginia. Trans. Am. 



Phil. Soc, v. 4, pp. 439-443. 1799. 

 Lesquekeix. Leo. Torfbildung im grossen Dismal Swamp. Zeitschr. der 



deutsche j^eolog. Gesellsch., vol. 4, pp. ((95-097. 1852. 

 McGee, W. J. Three formations of the middle Atlantic coast. Am. Journ. Sci., 



HI, vol. 35. pp. 120-143, 328-330, 367-388, 448-466. 1888. 

 M assart, Jean. La biologie de la vegetation sur le littoral Beige. Mem. Sot;. 



Roy. Bot. Belg., v. 32, pt. 1. pp. 7-43, pis. 1-4. 1893. 

 Merriam, C. H. Laws of temperature control of the geographic distribution of 



terrestrial animals and plants, Nat. Geographic Mag., vol. 0. pp. 229-238. 



1894. 

 Merriam, C. H. The geographic distribution of animals and plants in North 



America. Yearbook U. S. Dept. Agr. for 5894, pp. 203-214. 1895. 

 Merriam, C. H. Life zones and crop zones in the United States. Bull. Div. Biol. 



Survey, U, S. Dept. Agr., No. 10. 1898. 

 Michaux, F. A. Voyage a l'ouest des monts Alleghanies: English translation. 



Travels to the westward of the Allegheny Mountains. London, 1805. 

 Mitchell, E. On the character and origin of the low country of North Carolina. 



Am. Journ. Sci., v. 13, pp. 336-347. 1S28. 

 Niedenzu, Franz. Uelter den anatomischen Bau der Laubbliitter der Arlmtoi- 



deae und Vaccinioideae in Beziehung zu ihrer systematischen Gruppierung 



und geo^raphischen Verhreitung. Bugler's Bot. Jahrb., v. 11, pp. 134-263, pis. 



3-6. 1*90. 



