A New Phlox from Texas 

 v' Phlox wilcoxiana sp. nov. 

 E. R. BoGuscH 



The writer's attention was first directed to this plant four 

 years ago while collecting in the coastal region of Texas. The 

 deep red color of the flower was so intense and abundant that 

 a number of plants were collected for closer study. At first it 

 it was believed that the deeper coloration was due to soil factors 

 entirely, and seed was collected for both this species and of 

 Philox drummondii Hooker, which is the name the plant has 

 been passing under. When the seeds of one locality were planted 

 in the habitat of the other, no changes in color or structure were 

 evident and four years' observation has revealed no difference of 

 the offspring that have come from self-seeding. 



The new phlox differs from Phlox drummondii in the deep 

 red color of the corolla, the larger size of the plant, the much 

 longer calyx, and in the arrangement of the leaves. Phlox 

 wilcoxiana as a whole is much more viscid, and specimens that 

 have been placed between sheets shed considerable quantities 

 of sand that adheres to the living plant. The more villous stem 

 and leaves approaches that of Phlox villosissima (A. Gray) 

 Small, but the latter is a smaller plant with a somewhat larger 

 corolla limb. Both Phlox drummondii and Phlox villosissima 

 dry with lavender or pink corollas, while that oi Phloxwilcoxiana 

 invariably dries a deep maroon-red. White flowered forms have 

 been observed, but they are few. 



The specific name has been taken from the geologic for- 

 mation upon which the species is found most abundantly. The 

 distribution is most abundant in Gonzales, Caldwell, Bastrop, 

 Atascosa, and adjoining counties, but it is expected to occur 

 over a greater part of the coastal region, and it has never been 

 reported from any other stations. A description of the characters 

 follows. 



Annual, villous, viscid plants. Stems 1-5 dm. tall, sometimes 

 branched at the base, usually erect: lower leaves opposite, 

 oblanceolate with narrowed bases, petioled, 2.5-4 cm. long; 

 upper leaves lanceolate with obtuse, sometimes clasping, bases, 

 alternate, 2-4.5 cm. long, 4-8 mm. wide: calyx 10-12 mm. long 



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