p2 BOTANICAL GAZETTE. 



plan of single four. I noticed one with four petals and only two se- 

 pals, the fourth colored organ occupying the position of a sepal. (As 

 the nature of an organ depends upon its position rather than its color 

 or texture, this Tradescantia had three petals and three sepals, one of 

 the latter having become petaloid. — Ed.) 



Collinsia violacea often has 7 flowers in a whorl, also the petals 

 are blue, not violet. 



Pcnstemon tubiflorxis with three leaves in a whorl was found by 

 Mr. F. W. Ellis, one of my pupils. 



Trillium sessile, var. A/iittalliana, occurs with four leaves instead 



of three. 



Scilla Fraseri sometimes has white flowers. 



Ophioglossum vulgatum was found growing on the flat top of a lime- 

 stone ledge 200 feet above the valley. 



jEsculus glabra was found growing in Madison Co., Crawford 

 Co., and as far south as the Red River. It attains a diameter of 15 

 inches in the Ozan bottom in Hempstead Co. 



Found Acer saccJuirinum as far southwest as the Bois d'arc 

 Creek, a northern tributary of Red River. 



Magnolia acuminata occurs in Garland, Montgomery, St. Francis 

 and Crawford counties, and probably in many other places. 



Acer dasycarpum was found as far south as the Saline River in Sa- 

 line Co. 



Robinia Pseiidacacia grows in Hempstead Co., on the "Black. 

 Lands." 



Gymnocladus Canadensis occurs in Garland Co. 



Prunus Chicasa undoubtedly grows wild in Southwestern Arkan- 

 sas. 



Pints coronaria grows abundantly as far southwest as Red River 

 in Arkansas. The fruit is very deeply depressed at the stem and 

 blossom ends, and is more than twice as broad as long. I have been 

 accustomed to seeing it nearly globular in the Western States. 



Ainelanchier Canadensis occurs in the mountainous regions of 

 Southwestern Arkansas. 



Nyssa iiniflora was found as far north as Little Rock in cypress 

 swamps. 



Fraxinus quadrangulata occurs in Garland. Hempstead and St. 

 Francis counties and in the northwestern part of the State. 



Madura is plentiful in Southwestern Arkansas. 



Qucrcus bicolflri?, not uncommon in all the river bottoms of S. W. 

 Arkansas. 



Q. imbricata occurs in N. E. Arkansas. 



Q. microcarpa occurs as far southwest as Red River. 



Q. ivrafa is the principal growth in some of the bottoms of the 

 northern tributaries of Red River. 



Catalpa speciosa grows large in Hempstead Co. Measured one 

 tree 13 feet 10 inches in diameter, and saw several trees about 4 feet. 

 This species, 1 learned, was introduced from Louisiana, but it is now 

 spontaneous all along the creek bottoms of that region. 



