26o 



THE CACTACEAE. 



Schelle, Handb. Kakteenk. 50. f. 12; Belg. Hort. 26: pi. 8; Illustr. Hort. 15: pi. opp. 51; 

 Deutsches Mag. Gart. Blumen. 1869: pi. 17, opp. 257, as 0. rafinesquei; Kraemer, Appl. 

 Econ. Bot. f. 341. 



On page 130, vol. i, insert: 

 121a. Opiintia ebirmispina Small, sp. nov. 



Prostrate, widely branched and forming mats on dune sands, with tuberous roots; joints oval 

 or suborbicular, varying to broadest above middle, thickish, 6 to 13 cm. long, pale green, somewhat 

 shining, especially when young; leaves ovoid-subulate, 4 to 5 mm. long, pale green, recurved- 

 spreading; spines relatively stout, 2 to 4 at an areole or sometimes solitary, i to 2 cm. long, ivory- 

 white with yellowish tips when j^oung, becoming dark gray, not spirallj- twisted, greenish when wet; 

 flowers few; ovary obconic; sepals triangular, green, 5 to 7 mm. long; corolla clear yellow, 4 to 5 

 cm. wide ; petals few, narrowly cuneate, often minutely pointed ; berries obovoid, 2 cm. long or less. 



Coastal sands. Cape Romano, Florida. Type specimens in the herbarium of the New 

 York Botanical Garden; collected in May 1922, by J. K. Small. 



Figure 237 is from a photograph by Dr. Small of the type plant. 



Fig. 237. — Opuntia eburnispina. 



On page 131, vol. i, under Opuntia macrorhiza, add to illustrations: AVatson, Cact. 

 Cult. ed. 3. f. 59; Diet. Gard. Nicholson 4: 580. f. 50, 51. 



On page 131, vol. i, under Opuntia tortispina, add the synonym: Opuntia cymochila 

 montana Englemann, Proc. Amer. Acad. 3: 296. 1856. 



Also add to distribution: Southeastern Colorado. Established and slowly spreading 

 east of Cincinnati, Ohio (E. T. WherrjO- 



Also add to illustrations: Watson, Cact. Cult. ed. 3. pi. opp. 102; Meehans' Monthly 

 11: 57, as Opuntia mesacantha; Meehans' monthly 5: 172, as 0. oplocarpa. 



On page 134, vol. i, Opuntia sulphurea, insert: Mr. W. B. Alexander writes as follows 

 concerning this species: 



"This is by far the commonest species of Opuntia in the Argentine, where it is commonly 

 known as 'penca,' i. e. the spiny plant, sometimes being distinguished from other larger species by 

 the name 'penquilla' or 'penca chica.' The writer met with it in the provinces of Buenos Aires, 

 Cordoba, San Luis, Alendoza, San Juan, La Rioja, Catamarca and Santiago del Estero." 



Add to illustrations: Wiener 111. Gart. Zeit. 28: f. 17, as Opuntia maculacantha; 

 MoUers Deutsche Gart. Zeit. 25: 476. f. 9, No. 18. 



