337 



in P. sctacea they are longer. The calyx of the new species is 

 sharply diagnostic, being urn-shaped with a much enlarged base, 

 the calyx of P. sctacea being turbinate and narrowed at the 

 base. The cusps terminating the sepals are much stouter and 

 only about one-half as long as the very slender cusps of P. setacca. 

 Mr. Heller's number 1729, distributed as P. setacea, is Paronychia 

 chorisajithoides^ but, being quite young, it has not yet assumed the 

 characteristic habit that Dr. Palmer's specimens exhibit. 



SlPHONYCHlA CORYMBOSA, 



Perennial, stoutish, the foliage pubescent with recurved hairs. 

 Stem branched at the base, the branches tufted, 1-3 dm. tall, erect 

 or ascending, olive-green or brownish, forking, especially above, 

 ribbed, topped by the corymbosely disposed cymes ; leaves oblan- 

 ceolate to oblong-oblanceolate, .5-1.5 cm. long, acutish, ciliate, 

 sessile ; stipules ovate, silvery, long-acuminate ; inflorescence sil- 

 very ; calyx 2-2.2 mm. long, pubescent at the base, the segments 

 oblong or ovate-oblong, white, longer than the tube, obtuse, con- 

 cave, slightly hooded at the apex ; stamens included ; style ex- 

 serted; utricle ovoid, I mm. long. 



The original specimens were collected by Professor L. M. 

 Underwood on Ship Island, on the coast of Mississippi, in June, 

 1896. 



Siphonychia coryinbosa is most closely allied to Siphoiiychia encta, 

 which it simulates in habit. The characteristic difference in ap- 

 pearance between the two species is in the foliage, that of S. erecta 

 being glaucous, while that of the new species is clothed with a 

 pubescence consisting of short recurved hairs; the inflores- 

 cence of SipJionycliia corymbosa is more lax ; the calyx furnishes 

 good distinctive characters : that of the new species is shorter 

 and stouter, the segments oblong, with converging tips, instead 

 of lanceolate, with erect tips, as in that of .S". crccta. 



Clematis glaucophylla. 



Perennial, bright green, glabrous. Stem rather slender, 2-5 

 meters long, climbing over bushes or trees, nearly simple, dark- 

 red, furrowed, much enlarged at the nodes ; leaves ovate, 3-10 cm. 

 long, thickish, acute, often apiculate or acuminate, entire, 3-lobed 

 or trifoliolate, with conspicuous white nerves above, prominently 

 nerved and glaucous beneath, cordate or subcordate ; floral leaves 

 with petioles I cm. long, the nerves gradually diverging from the 

 midrib; flowers reddish purple, glossy, 2-2.5 cm. long; calyx 



