L'll 



Scuola sup. agric. (Ser. 2) 8 1907 (24). 

 (540()]. 53827 



Rose. rel>er Sprosseiibildung der 

 Kaktcen. Moiiatsclir. Kakteeiik. Neu- 

 dainui 19 1!)0'J(02). [1000 5400]. 



5382S 



Rose, .l[osepIi] N[el8on]. Studies of 

 Mexit-au and Central American plants. 

 No. 0. Washington D.C. Smithsonian 

 Inst. Cont. U. S. Nation. Herb. 12 190'.) 

 Ci-vii 2.')9-.302 ix with i)l. text tig.). 

 [5400 fiOOO 6500 8000 gl hh\ 53829 



Rediscovery of Eclieverin 



carnicoJor. Washington D.C. Smith- 

 sonian Inst. Cov.t. U. S. Nation. Herb. 

 12 1909 (393 with pi.). [5400]. 53830 



Three new species of 



Crassulaceae fmm Guatemala. Washing- 

 ton D.C. Smithsonian Inst. Cont. U. S. 

 Nation. Herb. 12 1909 (395-396 with 

 pi.). [5400 8000 hb]. 53831 



Rediscovery of Cercus 



nudiflorus. Washington D.C. Smith- 

 sonian Inst. Cont. U. S. Nation. Herb. 12 

 1909 (397-398 with pi.). [5400]. 53832 



A species of Pereslila from 



Guatemala. Washington D.C. Smith- 

 sonian Inst. Cont. U. S. Nation. Herb. 

 12 1909 (399 with pL). [5400 8000 hh]. 



53833 



New species of Opunt'ia 



from Arizona Washington D.C. 



Smithsonian Inst. Cont. U. S. Nation. 

 Herb, 12 1909 (401-402 with pi.). [5400 



-8000 gi]. 53834 



Ecli'inocereiis Ba'ileyi, a 



new cactus from Oklahoma. Washing- 

 ton D.C. Smithsonian Inst. Cont. U. S. 

 Nation. Herb. 12 1909 (403 with pi.). 

 [5400 8000 gi]. 53835 



Nopalea hitea, a new 



cactus from Guatemala. Washington 

 D.C. Smithsonian Inst. Cont. U. S. 

 Nation. Herb. 12 1909 (405 with pi.). 

 [5400 8000 /tfc]. 53836 



Conzattia, a new genus of 



Caesalpiniaceae. Washington D.C. 

 Smithsonian Inst. Cont. U. S. Nation. 

 Herb. 12 1909 (407-408 with pi.). 

 [5400]. 53837 



Two new species of .Acacia 



of the series Filicinae. W^ashington 

 D.C. Smithsonian Inst. Cont. U. S. 

 Nation. Herb. 12 1909 (409). [5400 

 8000 gi]. 53838 



Five new ppecies of 



Crassulaceae from Mexico. Washinorton 



D.C. Smithsonian Inst. Cont. U. S. 

 Nation. Herb. 12 1909 (139-440 with 

 pi.). [5400 8000 i//j. 53839 



Rose, .T[oserJii] .\'[flson] r. Britton, 

 N. L. ; Coulter, J. M. 



Rose, Ludwig. Beiiriige zur Kenntnia 

 der Organismen im Eichenschleimflusa. 

 Diss. Berlin (Druck v. Gebr. Unger) 

 1910(52). 24cm. [7700 4050 3100 

 30G0]. 53840 



Rosen, Felix. Cliarakterpflanzen des 

 abessinischen Ilochhmdes. (Vegeta- 

 tionsbilder, hr.sg. von G[eorg] Karsten 

 u. H[einrich] Schenk. Reihe 7, H. 5.) 

 Jena (G. Fischer) 1909 (6 Taf. mit 

 Erlaut.). 31cm. '4 M. [8000/6]. 



53841 



Rosen, Joseph and Heller, Charles. 

 The absorptive power of a cultivated 

 soil. Bot. Gaz. Chicago 111. 46 1908 

 (224-229 with 3 text fig. tables). [3060 

 3200]. 53842 



Rosenberg, E[gon]. Ueber Bildung 

 uud Zersetzung von Fetten in der Natur. 

 Ziigleich ein Beitrag zur Lehre von der 

 Eiweissfiiulnis und der Entstehung des 

 Erdoles. Diss. Miinster i. W. Berlin 

 (Druck V. C. Marschner) 1908 (20). 

 20 cm. [3120]. 53843 



Rosenberg, Job. Die Holzkraukheiten 

 der Obstbiiume. Schweiz. Landw. Ztschr. 

 Aarau 35 1907 (539-541). [4150]. 



53844 



Rosendahl, C. Otto. Embryo-sac de- 

 velopment and embryologj' of Symplo- 

 carpua foetidus. Minn. Bot. Stud. Min- 

 neapolis 4 1909 (1-9 with pi.). [1500 

 2380 6000]. 53845 



r. Clements, F. E. 



Rosenhauer, [Paul]. Ueber die Beob- 

 achtung von lebenden ilicroorgauismen 

 auf festen Nahrboden. Centralbl. Path. 

 Jena 20 1909 (1067-1068). [7700 

 0090]. 53846 



Rosenstock, E[duard]. Filices novae 

 a Dr. O. Buchtin in Bolivia collectae. 

 II. (Originaldiagnosen.) Repert. nov. 

 spec, regni veget. Berlin 6 1909 (308- 

 316). [6700 8000/^:;]. 53S47 



Filices novae V. VI. 



(Originaldiagnosen.) Repert. nov. spec, 

 regni veget. Berlin 7 1909 (146-150); 8 

 1910(163-164). [6700 8000 ia eg]. 



53848 



Filices Spruceanae adhuc 



nondum descriptae, in Herbario Roland i 



