220 BOTANICAL GAZETTE. 



feet stands out free from the tree and branches vigorously at the top, 

 giving to this part of the vine a tine arborescent appearance. — 



J. M. MiLLiGAN, Jacksonville, III. 



Gentiana linearis. — In a note from Mr. Howard W. Preston, of 

 Providence, R. I., he states that on September 4th he found Gentiana 

 linearis, Froel., growing at Princeton, Mass. 



Botanical Contributions by Asa Gray. [Issued October 1, 1879.] 

 — The first part of this contribution contains descriptions of new 

 Composite in the Mexican collection made by Drs. Parry and Palmer 

 in 1878. About 50 new species are described, the following being 

 the genera with more than two additions, viz.: Eupatoriimi receives 

 8 new species, Brickellia 5, Baccharis.,- Galea, Tridax and Perezia 

 each 3. A new Gnaphalium is described, said to be the handsomest 

 one of the Rhodognaphalium group, a group peculiar to Mexico. Two 

 new genera are described; one belonging to the Eupatorineee and 

 resembling Kuhnia and Brickellia in involucre and flowers bears the 

 name of Barroetca. It starts with two species, one having been 

 described by Schauer in Linnaea under the name Bulhostylis suhuligera. 

 The other new genus belongs to the Helenioideee., near Laphamia and 

 Perityle and is called Eutrctas. 



• The second part contains descriptions of some new North American 

 genera and species. Suksdorfia is a new genus of the Saxifragex^ 

 belonging to the same group as Sullivantia and Boykima. It was 

 found in Washington and Oregon Territories along the Columbia 

 River. The genus Carpcnteria was described by Dr. Torrey in 1849 

 from specimens collected by Fremont in California, representing only 

 the fruit and some vestiges of the flower. Now from Dr. Kellogg 

 come good flowers, flower buds and fruit and hence the character can 

 be completed. The genus is very near Philadelphus. Ilowellia is a 

 new genus of Lohcliacese. discovered in Oregon. It grows in stagnant 

 water and has two forms, one submersed and the other emersed, 

 difl"ering from each other in flowers and leaves. The submersed 

 plant looks like a narrow leaved Anacharis^ while the emersed form 

 more resembles Doivningia in leaves. The genus is dedicated to the 

 Howells, who discovered it in May, 1879. 



From better flowering specimens of the Neivherrya of Torrey a 

 fuller character is given. 



A new species of Ranunculus, from Colorado, called R. Macauleyi, 

 resembles R. nivalis so much in flower that it was distributed with it 



