Vol. 9, No. 2 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN August 1, 1955 



PLANTS COLLECTED IN ECUADOR BY W. H. CAMP 

 UMBELLIFERAE 



MILDRED E. MATHIAS AND LINCOLN CONSTANCE 



Hydrocotyle acutifolia R. & P. 



Santiago-Zamora (' 'Orient e"): corolla cream-white; along narrow floodplain of 

 Rfo Itzintza, altitude 3500-3700 ft., Cordillera Cutudi, ca. 2° 40' S., 78° W., No- 

 vember 17-December 5, 1944, E-1239. This species has hitherto been known only 

 from central and southern Peru. 



Hydrocotyle humboldtii A. Rich. 



Azuay: trailing over banks, the stems and petioles red, the leaves deep green 

 above, usually dull, pale green and nitid below, the corolla segments dull white, 

 the ovary and disc green; Pacific side of pass, Nudo de Portete, pass between 

 headwaters of the Rfos Tarqui (Atlantic) and Giron (Pacific), ca. 9000 ft. eleva- 

 tion, March 10, 1945, E-2157. Loja-"Oriente" border: trailing on banks; crest of 

 the Cordillera de Zamora east of Loja, ca. 10,000 ft. elevation, July 2, 1944, E- 

 104. The species has previously been reported from Pichincha and Loja. 



Hydrocotyle incrassata R. & P. 



Azuay: scrambling on banks, the perianth yellowish; in the subparamo chapar- 

 ral along the Rio Cumbe (25-30 km. south of Cuenca), 10,000 ft. elevation, March 7, 

 1945, E-2056; plants in clumps from subterranean rhizome, the perianth pale 

 greenish-yellow; the eastern Cordillera 1-8 km. north of the village of Sevilla de 

 Oro, 8000-9000 ft. elevation, July 27-August 12, 1945, E-4313. This plant has 

 been known hitherto in Ecuador only from Chimborazo. 



Hydrocotyle leucocephala C. & S. 



Junction of Guayas, Canar, Chimborazo & Bolivar: leaves green above, pale 

 below, the flowers cream-white; in seepage, foothills of the western Cordillera 

 near the village of Bucay, 1000-1250 ft. elevation, June 8-15, 1945, E-3741. 

 Chimborazo: flowers white; in wet areas, canon of the Rio Chanchan near Huigra, 

 4000-4500 ft. elevation (mostly scrub- chaparral with a few seepages and small 

 swamps along the river), May 7-14, 1945, E-3084. 



Hydrocotyle tambalomaensis H. Wolff. 



Azuay: trailing over banks, the stems purplish, the leaves very dark green 

 above, pale green below, the perianth pale green; the eastern Cordillera, 1-8 km. 

 north of the village of Sevilla de Oro, 8000-9000 ft. elevation, July 27-August 12, 

 1945, E-4297. This species has been known hitherto only from central Ecuador 

 (Chimborazo, Bolivar, etc.). 



Hydrocotyle yanghuangensis (Hieron.) Math. 



Azuay: plants on soil or scrambling up mossy trees and rooting at nodes, the 

 stems and petioles usually purplish, the leaves deep green, subnitid above, paler 

 below, the perianth dull purplish overcast on light green; the eastern Cordillera, 

 4-6 dm. north of the village of Sevilla de Oro, 9000-10,000 ft. elevation, August 

 16, 1945, E-4731. 



Spananthe paniculata J acq. 



Azuay: base of stem nigrescent-purple, the petals white; weed in wet fields, 

 quebradas leading into the Rio Collay, 3-8 km. north of Sevilla de Oro, 7000- 



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