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OPUNTIA. 



141 



Illustrations: 

 Figure 1 7 6 re 



Mex. Bound, pi. 75, f. 8; N, Mex. Agr. Exp 



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New Mexico, northwest of El Paso, Texas, in 19 13. 



139. Opuntia tardospina Griffiths, Rep. Mo. Bot. Gard. 22: 34. 1912. 



Roots fibrous; low, spreading plant, the joints usually resting on the ground; joints orbicular 

 to obovate, 16 to 24 cm. long; areoles large, usually distant, often 4 cm. apart; spines usually wanting 

 except from the upper areoles and along the upper margin, usually single, sometimes 2 from an 

 areole, 4 to 5 cm. long, brown, but lighter towards the apex; glochids numerous, brown, persistent; 

 fruit red, 6 cm. long; seeds 5 mm. broad, acute on the margin. 



Type locality: Near Lampasas, Texas. 



Distribution: Eastern Texas. 



Illustrations: Rep. Mo. Bot. Gard. 22: pi. 11, in part; pi. 15. 



Figure 177 represents a joint of the plant collected by Albert Ruth in 1912, north of 



Dallas, Texas. 



Fig. 177. — O, tardospina. *Xo.5. 



iniana Weber 



Figs. 178. 179.— Cluster of spines and joint of O. gosseliniana. X0.4 



One meter or more high, branching from the base, the old trunk often bearing numero^ ong. 

 acicular spines; joints usually red or purplish, usually very thin as br?ad ^s o^ ^made^^ 

 sometimes 2 dm. broad; lower and sometimes all the areoles without ^P^^^^'^P^^^P^^^^'^^'^"^^^^^^ 

 so. generally i. sometimes 2, rarely 3 from an areole. 4 to 5 or ^f "^^^^^.^."^ • °"f' ^^i^^"\Xut 

 weak; glochids brown, numerous, forming on old joints very large ^^"/;^^;^^'/j"^2^,^;^i°,"^' 

 spines but bearing numerous brown glochids at the areoles, with a depressed umbilicus. 



Type locality: Coast of Sonora on the Gulf of California. 



Distribution 



Mexico 



This specieswas placed tentatively in the Pubcsccntcs by Schumann a Ihougn a w^^^^^^ 



glabrous; but it belongs better in the Phaeacanthae In some °f. "^^,1*^;" '' 7"='"""^" 



r\ - ^ - — • A «r/^#-fti^r nf a niapp in anv conection. 



U. macrocentra. 



very 



Illustrations: Monatsschr 



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