CATALOGUE. 215 



Veronica Americana, Schweinitz.— South Park, Colorado, 1873, 

 Wolf (33G); Santa Fe, N. Mex , at 7,044 feet elevation, June, 1874, 

 Rothrock (30). 



Veronica alpina, Linn. — Mosquito Pass, Colorado, July, 1873, 

 Wolf (332). 



Veronica serpyllifolia, Linn. — Colorado, 1873, Wolf (331, 333). 



Veronica peregrina, Linn. — Twin Lakes, Colorado, July, 1873, 

 Wolf (330). 



Veronica peregrina, Linn., var. diffusa, Rothrock — Widely and 

 diffusely branched; bracts entirely like the leaves — On alkaline flats, San 

 Luis Valley, Colorado, 1873, Wolf (335). 



Gerardia Wrightii, Gray (Bot. Bound. Survey, p. 118). — Stems 

 simple, from a perennial root, virgate, very scabrous, as well as the linear- 

 filiform, sharply mucronate leaves; peduncles as long as the flowers; calyx 

 truncate, with ft short teeth; corolla yellow, broadly campanulate from a 

 very short tube, pubescent on the outside, very smooth within; filaments 

 short, only villose at the apex ; anthers similar, naked, very obtuse, sagittate 

 at base; cells subulate-awned; stigma clavate — Sanoita Valley, Arizona, at 

 5,500 feet elevation, August, 1874, Rothrock (643). The specimen agrees 

 in every respect with the original description, except that the stem is not 

 simple, but branched. It is probably like our Eastern G. purpurea, which 

 has stems of both kinds. The flowers in the dried state have a yellowish 

 and not a purple tinge. 



Castilleia affinis, Hook. & Arn. (Watson, Bot. King, p. 228). — Zufii, 

 N. Mex., at 6,500 feet elevation, July, 1874, Rothrock (161); Camp Bowie, 

 Arizona, at 5,300 feet elevation, August, 1874, Rothrock (475). 



Castilleia minor, Gray (C. affirm, var. minor, Gray, Watson, I. c. p. 

 228).— Nevada and Utah, 1871, 1872, Watson's Report, 



Castilleia linarlefolia, Benth. (Watson, /. c. p. 228) — Twin Lakes, 

 Colorado, at 9-10,000 feet elevation, July, 1873, Wolf (288). 



Castilleia parviflora, Bong. (Watson, /. c. p. 229). — Nevada, 1871, 

 1872, Watson's Report; Arizona, 1873, Loew (286). 



Castilleia Integra, Gray (Watson, I. c. p. 456). — San Francisco 

 Mountains, Arizona, 1871, 1872, Watson's Report; Western New Mexico, at 



