100th meridian, and in Western Louisiana, and extends across the Rio Grande into Mexico, but 

 so far have been unable to trace it into New Mexico, where it has been reported by some botanists. 

 These were probably the species I have described as V. Doaniana. No specimens of it have been 

 received from east of the Mississippi River, except in two instances, from the vicinity of Manatee, 

 Florida, collected by J. H. Simpson. Dr. Engelmann reported it in Florida,, and mentioned 

 nothing of V. coriacea there, but after the most diligent search, collection of specimens from many 

 places and growing of seedlings of what was supposed to be it there, only 1'. coriacea, which 

 might be mistaken for it, save in the instances named above, was found. It would thus appear 

 that Engelmann was correct in reporting it in Florida, though very rare there. It is fou^.d of 

 immense size along the overflowed lands of the rivers, along sides and tops of the limy, cretaceous 

 hills of Southwestern Texas, where it luxuriates, and along all the wooded ravines of the black 

 prairies of Texas. It prefers a soil strong in lime, although it thrives in almost any soil. I have 

 seen it with vines 3 to 6 inches in diameter at base extending into tops of cottonwood trees at 

 least 100 feet tall, growing in Red River Bottom in this (Grayson) county. 



4. VITIS DOANIANA, Munson. (See Plate IX.) 



"Doan's Grape." 



Plant: Climbing vigorously 15 to 30 feet when among trees, but bushy and ascending when 

 without support, as is often found on the Pease River and Prairie-dog-town-Fork of Red River; 

 when young, covered with white cotton which becomes flocculent on maturity, and upon the dull 

 green leaves gives them a bluish appearance, as also the rapidly expanding young leaves which 

 clothe the growing tips of branches. Seedlings first year rather weak, declining. 



Roots: Fibrous, hard, penetrating, tapering from collar in seedlings. 



Wood: Mature annual, pale grayish brown; bark finely and regularly striated, old bark 

 finely checked and fibrous, persistent; nodes little bulged; diaphragm medium to thin ; buds 

 globose on younger wood, acute on older, large whitish with shade of pink in bursting; tendrils 

 mostly once forked, occasionally twice, medium to strong, woolly or hairy when young; 

 internodes short. 



Leaves: Stipules medium 1/4' to 1/8' long by one half as wide, or more, pale pinkish .nearly 

 smooth, or hairy; petiole scarcely more than one-third to one-half width of blade in length, 

 rather thick, distinctly grooved above and striated, cottony in Red River specimens, pubescent 

 in more western from Pease River region; average length of mature blade 4'; average width 

 4-1/3'; shortest 2'; longest 5'; narrowest 2'; broadest 6'; which represents a regular cordate 

 outline; basal sinus generally 1/2' to 1' deep, with basal lobes approaching, rarely lapping; 

 blade generally three lobed with narrow, rounded sinuses, closed or open; sometimes shouldered; 

 points of shoulders or lobes acute, as is also summit of central lobe, rarely taper-pointed; 

 teeth medium or shallow, irregular, convex, obtuse or rarely acute ; mucronate. Venation from 

 the generally 6 opposite or nearly opposite pairs of ribs, moderately prominent and in upper 

 Red River specimens densely pubescent along ribs and closely felted between with an ashy blue 

 felt, scarcely woolly or cottony, but in Pecos River, Texas, specimens, pubescent along ribs and 

 thickly hairy between; in Red River specimens on upper face wrinkled, cottony and floccose, 

 becoming smooth with age; in western specimens less cottony and less wrinkled; young leaves 

 bearing a dense ashy felt appearing pale bluish in color ; color of mature foliage dull dark green ; 

 texture thick, dense and leathery. Leaves on ground shoots of old roots 5-, or more, lobed. 



Cluster: Small to medium size, peduncle 2' to 4' long, compact, shouldered. Staminate 

 much larger than the fertile; rachis and divisions more or less woolly. 



Flowers: Fertile, with short recurved stamens, small anthers, non-virile pollen, pistils 

 short, thick; stile very short, stigma broad; staminate, stamens ascending, medium in length, 

 anthers large, bearing abundant pollen. 



Berries: Y^' or more in diameter, round, black, with heavy whitish bloom; skin tough, 

 pungent; quality good though a little pulpy; persistent. 



34 



