﻿198 Heller : New Plants from 



Geranium Texanum (Trelease) 



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Geranium Caroliniamum var. Texanum Trelease, Mem. Bost. 

 Soc. Nat. Hist. 4 : 76. 1887. 



Annual ; spreading and somewhat ascending, branched from 

 the base and also above, rather stout, 20 cm. high, pubescent with 

 short, appressed white hairs, which point downward : leaves light 

 green, of firm texture, the lower ones on petioles 6-8 cm. long, 

 almost orbicular in outline with rounded sinus, 3 cm. in diameter, 

 three-parted and these divisions again three-lobed, except the lat- 

 eral or basal ones, the divisions generally oblong, rounded ; upper 

 leaves essentially the same, except that the smaller upper ones are 

 more irregular, all appearing as if glabrous to the naked eye, but 

 more or less pubescent with appressed, ascending hairs, especially 

 on the veins- and margins : peduncles slender, two-flowered, the 

 lower ones 2 cm. long, the upper ones barely half that length ; 

 pedicels slender, 5-8 mm. long; sepals orbicular-ovate, 4 mm. 

 long, 3 mm. wide, three-nerved, one central and prolonged into a 

 prominent cusp, the other two marginal, and marked with a line 

 of hairs ; flowers white with a faint purple tinge, the petals entire, 

 oblong or at most obovate-oblong, slightly exceeding the calyx, 

 three-nerved, the veins anastomosing at the top so as to form an 

 open loop ; ovary-lobes pubescent with long, scattered hairs ; beak 

 shghtly over 1 cm. long, short-pointed, hispid with short, ascend- 

 ing hairs : seed ovoid, finely and closely pitted. 



Some time ago, while looking over the specimens in the 

 Geranium Carolinianum cover at the herbarium of Columbia Uni- 

 versity, I came across my own no. 15 10, collected at Corpus 

 Christi. Texas, in 1894, and at once noticed its dissimilarity 

 to specimens from the Atlantic region. Prof. Trelease kindly 

 loaned me the type specimens of his Geranium Carolinianum 

 Texanum for comparison, and I learned that my specimens were 

 identical with his, and quite typical. The specimen from which 

 the above description is drawn is in the Columbia herbarium. 

 The types, which were collected by Lindhcimer, near New Braun- 

 fels in 1848, are more mature, showing fruit only. My specimens 



March 



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a short distance southeast of Corpus Christi, and distributed as 

 Geranium Carolinianum. Although related to that species, G. 

 Texanum differs in being lower, of a more diffuse habit, the 

 pubescence is of a different nature, the calyx-lobes are broader and 



