71 



Wat 



incon- 



spicua^ var. sinuata^ but on comparing the two forms I see no simi- 

 larity except in the size of the^flowers. 



Salt Lake City, Utah. ^ Marcus E. Jones. 



§ 65. Rone , _ 



strong tendency to increase the number of parts of the flower. While 

 it may be regarded as normally pentamerous, I have found in the 

 same cluster, and almost as a constant thing, flowers with six, seven, 

 or even more lobes to the corolla, accompanied by a corresponding 

 increase of stamens. In the much-compounded cymes, fasciation is 

 frequent, as many as three flowers often being fused together. The 

 interior of the tube, the base of which is filled with nectar, has an 

 admirable arrangement for protecting this from small insects. It- is 

 clothed with interlacing and upwar^-pointmg hairs. High powers of 

 the microscope show these to be moniliform. It is hardly conceiv- 

 able that an ant could pass them. 



Brown University, April 21, i88i. W. W. Bailey. 



66. Plant-Stations Wanted,— I would like to learn throui^h 

 the Bulletin or otherwise, the extreme northern limits of the fol- 

 lowing plants : Pmus Taeda^ L., Juncus maritimus^ Lam., and Zan- 

 thoxyhun Carolimauu?n^ Lam. I would be pleased also to learn the 

 southern limits of the following plants: Xanthium strumarium^ L., 

 Draba verna^ L,, Trifolium procumbens^ L., Cakile 7nariiima, Scop., 

 and Salicomia mucronata^ Lag.? All the foregoing plants grow in 

 this county ; the first two being especially abundant and probably 

 extending far north of this place. 



Messongo, Accomac Co., Va. Ellis Mears. 



67. Botanical Literature.— 77/^ Gynmosporangia or Cedar- 

 Apples of the United States. By W, G. Farlow. (From the Anni* 

 yersary Memoirs of the Boston Society of Natural History. 1880. 

 4to, pp. 38, with two plates). This interesting memoir is the outcome 

 of some comparatively recent researches made by Prof. Farlow on 

 the species, as represented in the United States, of Gymnosporangiiim^ 

 one of the genera of the Piicciniaei. The species of this genus of 

 fungi, popularly known as ^'cedar apples," are comparatively few, 

 and their development was first studied by Oersted, of Copenhagen, 

 who traced a connection between them and the species belonging to 

 the genus Roestelia, Oersted's observations having been subsequently 

 confirmed by De Bary, Cornu, Cramer and others, the old genus 

 Roesteha was suppressed, and what were formerly regarded as species 

 are now usually referred to as the aecidial or hymeniferous stages of 

 different Gymnosporangia. Oersted even went so far as to announce 

 that he had succeeded in connecting genetically each of three 

 species of Gymnosporangmm with a particular species of Roestelia* 



Prof. Farlow having determined to ascertain, if possible, whether 

 our species of Gyttmosporangium likewise could be genetically con- 

 nected with our species of Roestelia^ it became necessary, in order 

 that any experimental cultures that might be made should prove sat- 



