Crossosoma 34(2), Fall-Winter 2008 
76 
NOTEWORTHY COLLECTIONS 
Calochortus weedii Alph. Wood var. intermedins F. Ownbey (LILIACEAE) - 
San Bernardino County: Chino Hills, Chino Hills State Park, Southern California 
Edison powerline corridor east of Bane Canyon Rd. on Pomona Trail, 7.5’ USGS 
Prado Dam Quad (33°56’25”N, 117°41’50”W; T3S, R8W, W/2 S2), elev. 360 m. 
(1175 ft), 22 May 2008, Scott D. White & Justin M. Wood 12027 (RSA). 
Los Angeles County: Brea Canyon, east of 57 Freeway, south of Diamond 
Bar on Southern California Edison access road, 7.5’ USGS Yorba Linda Quad 
(33°57’36”N, 117°50’59”W; T2S, R9W, NW/4 of S32), elev. 256 m (840 ft.), 28 
May 2008, Justin M. Wood 4 (RSA); San Jose Hills, California State Polytechnic 
University, Pomona, 7.5’ USGS San Dimas Quad (34°03 , 33 ,, N, 117°49 , 43 ,, W; 
T1S, R9W, S28), elev 283-289 m. (930-950 ft.), 28 May 2008, Justin M. Wood 
5 (RSA); Puente Hills, east of Rose Hills Memorial Park, 7.5’ USGS El Monte 
Quad (34°00’19”N, 118°00’32”W; T2S, R11W, Sll), elev. 314-320 m. (1030- 
1050 ft.), 4 Jun 2008, Scott D. White & Justin M. Wood 12049 (RSA); Puente 
Hills, between Turnbull Cyn Rd. and Skyline Dr. on Southern California Edison 
access road, 7.5’ USGS Whittier Quad (33°59’50”N, 118°00’20”W; T2S, R11W, 
S14), elev. 345 m (1140 ft.), 4 Jun 2008, Scott D. White & Justin M. Wood 12056 
(RSA); Puente Hills, east of Hacienda Blvd. on Skyline Dr., 7.5’ USGS La Habra 
Quad (33°58’24”N, 117°57’07.5 ,, W; T2S, R10W, S29), elev. 384 m. (1260 ft.), 4 
Jun 2008, Scott D. White & Justin M. Wood 12053 (RSA). 
Previous knowledge. Calochortus weedii var. intermedius (intermediate mariposa 
lily) is on California Native Plant Society’s List IB. 2. It occurs in coastal sage 
scrub, grassland, and chaparral, generally in openings in shrublands and steep 
exposed areas of conglomerate sandstone and siltstone. It occurs throughout the 
lower elevations of the Santa Ana Mountains and the Chino Hills primarily in 
Orange County, but extending into Riverside County. It has been reported in 
Los Angeles County (California Native Plant Society On-Line Inventory, http:// 
northcoastcnps.org/cgi-bin/inv/inventory.cgi, site accessed 26 Apr 2009) but 
apparently is unvouchered there (Consortium of California Herbaria, http:// 
ucjeps.berkeley.edu/consortium/, site accessed 26 Apr 2009). 
Significance. First record for San Bernardino County and a significant expansion 
of range and number of occurrences in Los Angeles County. We note that 
Calochortus weedii varieties apparently intergrade with C. plummerae in some 
parts of their ranges. The specimens reported here were identified by petal color 
in living material (darker purple than C. plummerae which generally are pink or 
lavender); fringed petal margins; and yellow hairs surrounding the nectaries. 
