176 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 13 



Haplopappus junceus Greene, Bull. Calif. Acad Sci. 1 :190. 1885. 



Puerto Refugio, Angel de la Guardia Island, March 20, Rempel 265. 



A low glandular-pubescent suffrutescent with slender ascending 

 branches, the spinulose leaves reduced upward, bearing 1 to a few heads 

 of involucres 6-8 mm high. Known from northern Baja California and 

 adjoining states, Pinacate Mountain in Sonora; the type from San Diego 

 County, California. 



Heliopsis parvifolia Gray, PL Wright. 2:86. 1853. 



Puerto Escondido, Sierra Giganta, February 11, Dawson 1100. San 

 Carlos Bay, Sonora, February 8, Dawson 1051. 



Known from southwestern Texas to Arizona and northern Mexico. 

 The appearance of this plant at low elevations near Guaymas is of in- 

 terest, since it is more commonly found in the middle elevations of 

 mountains. A related plant, H. longipes (Gray) Blake, of central Mexi- 

 co has recently been found to contain active ingredients in the roots, 

 which give promise of value as an insecticide. 



Heterosperma Xantii Gray, Proc. Am. Acad. Sci, 5:162. 1861. 

 San Jose del Cabo, February 17, Dawson 1176, 1168. 

 Cape District. Annual, yellow-flowered in spring. 



HOFMEISTERIA FASCICULATA PUBESCENS (WatS.) Rob., PrOC. Am. 



Acad. Sci. 47:192. 1911. 



Puerto Escondido, February 11, Dawson 1105. West cove in Con- 

 cepcion Bay, March 15, Rejnpel 178, foot of rocky slopes. Agua Verde 

 Bay, Baja California, March 10, Rempel 120. Punta Frailes, February 

 16, Dawson 1143. 



Gulf side of the southern part of the peninsula; type from Muleje, 

 Baja California. Flowers February to April or May. 



Lagascea decipiens Hem.sl., Diag. PL Mex. 33. 1879. 



San Carlos Bay, Sonora, February 8, Dawson 1064. 



Sonora and Chihuahua to Jalisco ; type from Sierra Madre Occiden- 

 tal of northern Mexico. It is common along the coast and in the foot- 

 hills, rarely or not at all penetrating the Sierra Madre itself, and may 

 be frequently seen along the washes where it occasionally rambles over 

 other shrubs. 



Malacothrix Xantii Gray, Proc. Am. Acad. Sci. 9:213. 1874. 

 Puerto Escondido, February 11, Dawson 1101. Agua Verde Bay, 

 March 10, Rempel 139, foot of rocky arroyo wall. 



