Index to recent Literature 219 



Ruellia (2), Lepidagathis, Aphelandra (2), Pseuderanthemum, Justicia (2), Jacob* 

 tma, Citharexylon, Aegiphila, Clerodendron and Bystropogon. 



Rusby, H. H. An Enumeration of the Plants collected by Dr. H. 

 H. Rusby in South America, 1885-1886, XXX. Bull. Tom Club, 

 27: 124-137. 24 Mh. 1900. 



Neea 



Phoradendron (4). 



Saunders, D. A. Ferns and Flowering Plants of South Dakota. 



Bull. So. Dakota Exper. Sta. 64: 101-227. 1899. 

 Schrenk, H. von. Notes on Arceuthobium piisillum. Rhodora, 2 : 



2 ~~5- pl* I2 - Ja. 1900. 

 Schumann, K. Echinocactus davatus Sohrens. Monatschr. fur 



Kakteenkunde, 10: 27, 28. 15 F. 1900. [Illust.] 

 Scribner, F. L., & Merrill, E. D. Studies on American Grasses. 



The North American Species of Chaetochloa. Bull. U. S. Dept. 



Agric. (Div. Agrost.) 21 : 1-44. / ^24. 8 Mh. 1900. 



C. apiculata, gibbosa, kispida, leucopi/a, Australiensis, macrosptrma, villosissima, 

 and various new combinations in this and allied genera. 



Massach 



Stone, G. E. Luxuriant Development of Spirog 



Ponds. Rhodora, 2: 33, 34. F. 1900. 

 Stone, G. E. The Walking Fern in Worcester 



setts. Rhodora, 2 : 14. Ja. 1900. 



Suksdorf, [W.] N. Washingtonische Pflanzen. Deutsche Bot. Mo- 

 natschrift, 18: 26, 27. F. 1900. 



New species and varieties in Saxi/raga. 



w 



Eleventh Annual Report of the Director. Rep. Mo 



Mexico. Proc. Amer. Acad., 



Bot. Card. 11 : 12-21. 1900 



Ulme, E. B. New Dioscoreas f 

 35 : 3 22 > 3 2 3- 16 Mh. 1900. 



D. pamicicola and D . Oaxacensis, new. 



Urban, I. Bibliographia Indiae occidentalis botanica. Continuatio 

 I. Symb. Antillanae, 2: 1-7. 15 Ja. 1900. 



m 



S. 1899. 

 Wanio. I 



Sur les Canellacees. Jour, de Bot. 13: 266-276. 



Lichenes novi rarioresque. Ser. III. Beiblatt zur 





Hedwigia, 38: (253)-(2 59 ). 25 J 



New species in Pertusaria, Sticta, Lcptogium, Graph's, Arthonia, Bottaria, 

 Pyrenula, Thelenella, Porina, Arthopyrenia, Didymella y and Corella from Guad- 

 eloupe, W. I. 



Webster, H. Unusual Variations of two common Agarics. Rhodora, 



2: 3 2 > 33- F- 19°°- 

 Wildeman, E. de. Un Theobroma nouveau. Bull. Herb. Boiss. 7 : 



957, 95 8 - 3° D - 1899. 



Theobroma Kalagua De Wild. , from the United States of Colombia. 



