DEC., 1913. EUPHORBIACE.E MILLSPAUGH 367 



Type locality: GUATEMALA, Canival, Huehuetenango, alt. 3.200 ft. 

 December, 1891, Dr. W. C. Shannon, U. S. A. 412. Type (visa) in 

 herb. Capt. John Donnell-Smith, in herb. U. S. National Museum, 

 Washington, D. C. 



24. PEDILANTHUS OERSTEDII Kl. & Gke. Tricocc., 106. 1859. 

 Branches virgate, leafless, terete, sparsely branchleted, long and 



stiffly puberulent. Cymes terminal; involucres solitary or few, ped- 

 uncles glabrous. 



(Said to differ from P. aphyllus only in the above characters). 

 Type locality: NICARAGUA, Segovia, Oersted. Type in herb. Botanical 



Museum, Copenhagen. 

 Distribution: Known only from the type. 



25. PEDILANTHUS APHYLLUS Boiss. in Kl. & Gke. Tricocc., 100. 1859. 

 Pedilanthus calcaratus Schlecht. in Linnaea, 19:155. 1847. ex ref. 



et descr. pi. non visa. 



Branches virgate, leafless, whitish, nearly simple. Cymes termi- 

 nal; floral leaves deciduous; involucres single or in twos; peduncles 

 pubescent; involucres 2 cm. long (1.2-1.4 cm.); tube hairy within, deeply 

 notched below, the main lobes rounded and erose-dentate at the apex, the two 

 lateral lobes connate somewhat more than half their length and the fifth 

 lobe one half connate with them, all spatulate, the rounded apices finely 

 erase, ciliate; pedicels of the male and female flowers glabrous, the 

 female bent strongly back toward the base of the involucre immediately upon 

 its issuance from the tube, style at first entire at the apex later shortly 3- 

 cleft. Appendix about half the length of the tube and projected along its 

 margin to the apex, prolonged posteriorly into a sarcous, 4-lobed, spurlike 

 sac, its two lobes narrowly elongated-ligulate, blunt, emarginate; glands 4. 

 (The italicized characters are drawn from Pringle No. 6291). 

 Type locality: MEXICO, Ruiz & Pavon. Type in herb. Boissier, Geneva. 

 Distribution: MEXICO, Orizaba, Botteri 968; Tehuacan, Puebla, Mac- 



Dougal &* Rose, Pringle 6291, Purpus 3419, Rose & Rose; Liebmann 



(P. calcaratus Schl.). 



26. PEDILANTHUS NODIFLORUS Millsp. Field. Col. Mus. Bot., 1:305. 

 1896. 



Shrubby, 2 m. high; stems whitish-farinose, jointed, widely branch- 

 ing; branches virgate, alternate, leafless. Inflorescence in lateral, 

 spiciform, densely white-tomentose cymes at the nodes. Involucre 

 red, hairy without and within, 8 x 4.5 mm., the superior fissure closed 

 by the united lateral and fifth lobes, the inferior notch about half the 



