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Descriptive Flora 



feathery, fernlike foliage and small white flowers clustered at the 

 ends of very slender, axillary stalks. Leaves once or twice pinnate- 

 ly compound or simple and finely dissected. Leaflets much cut 

 and divided. Corolla minute, white, 5-lobed, crowning the oblong 

 seed cases. Fruits slender, oblong, 2-lobed, less than y 2 M long, in 

 small clusters at the ends of slender, axillary stalks. February, 

 March and April. Widespread. 



PJianerotaenia texana (Coult. & Rose) St. John. 

 (Polytaenia nuttallii texana Coult. & Rose.) 



Plants 1 to 3 feet high, with thick, finely grooved stems, 

 large twice compound leaves, the segments broader than any of 

 the other members of the parsley family, wedge-shaped at base, 

 toothed above or with one or few lateral toothed lobes. Leaf 

 stem expanded at base into a membranous, often purplish sheath. 

 Upper part of the stem with opposite, 3-lobed or 3-divided, 

 toothed, wedge-shaped bracts, a flower cluster branching out of 

 the axil of each bract. Flowers yellow or yellowish-green, small, 

 in small umbels which are united by short stalks into a much 

 broader compound umbel. Petals small, obovate, notched, yellow- 

 ish-green. Fruit ripe in midsummer. Fruits flat, about y± 

 long, elliptic, 3 to 5 ridged on each side, the wings thick and pale. 

 The thick stems of this plant often turn purplish in fruit. May 

 and June. In shaded soil. Not common. This is the largest, 

 most coarse-stemmed and biggest leaved member of the carrot 

 family in Bexar County. 



Ptilimnium nuttallii (DC.) Britton. Lacef lower. 



Plants with ribbed stems, feathery or much dissected foliage, 

 and small clusters (about across) of white 5-lobed flowers, 

 these clusters united by stalks about 1" long into a larger flat- 

 topped cluster (1 to 2" across). Segments of the finely dissected 

 leaves no wider than the midrib. Flowers y± across. Petals 5, 

 deeply 2-lobed, the lobes overlapping slightly on the inner 

 margins giving the petal the appearance of having a hole the size 



