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Madrono, Vol. 60, No. 1, p. 56, 2013 NOTEWORTHY COLLECTION CALIFORNIA support the hypothesis derived from herbarium label Calyptridium —pygmaeum Parish ex Rydberg dcoantdaittihoantsCt.hapnygotmhaeerucmongoecnceurrss.iWnesliogfhttelnyemnocroeuntmeerseidc (MONTIACEAE). San Bernardino Co., Transverse it in slightlylowertopographicpositionsnearcreeks, in sRR-.a1on.n1cg6k(e.Js9ET,6rP3aSS,i,aln8RrJBSeueAglri)yno;na2,r02d14Ni0n,MooaCfM.yoFCu2orn0rat1ieag2si,,tnsGCR.,.oMRBa.liducfhG2fumNioM8lnel6dsi,,aa,mK3s.C4a.&Ds2t2aGl6y.,e pfnshyooerugltnmthdeareseiiudndmeaosrpweeoaansf,susefnhxodrpueuonbrssdetrdaienenasdr,sepaarasnorcdskaessil.nywesIvlthela.gwdeaeItsndataaeolrdclecaacassariseoeoasnns,altoClhn.ey URiCcRh)m.ond 1915, 1917, 1920, 1921, 1923 (JEPS, RSA, coarsegraniticsubstrates, andinthiswayitissimilarto close relatives. Previous knowledge. Calyptridium pygmaeum is a pefsreodilrmdmaooermcri-cllcuyyorlrinlienentcchtetehsee,dPocrteathnnuitnlsruaacalaClcaaelnaipdfelo.arnsWntoiiuattihhneeornnntdlheyeSmii1e5crMrodanoitsNcieuavmfcaeoednuaatne,-,d gc(arM.oLOwe6Niw0nTigsmIiAiaNnCEttohArfeEiFp)boha.ryne—lksltSaoaRfno(aSaB.desrmaWn2laaNlrt8,ds6ioe,nnpoh)yeeCmloeBl..ro,Law.lB,pliuRnufoenfbnfiMaonermsseseoatdn,, aMlotuhnotuagihnstharepeproocxciumrarteenlcyes22a9rekimn ttohethSeansouBtehr.naIrndtihnios c-r1e1e6k.;96s2o7i,ls 2w4et,Maoyf 2d0e1c2o,mpCo.seMd. grGauniiltlei.ams34.&2238G., latter region, C. pygmaeum was collected at Bear Lake Richmond 1934 (JEPS, RSA, UCR). in 1886 Parish1803), BluffLakein 1926{Munz10534), Previous knowledge. Lewisia triphylla is a diminutive and Arr(astre Flat in 1979 (Helmkamp & Helmkamp (2 to 7 cm) perennial herb in the Montiaceae. Unlike s.n.). Based only upon the history of collection, this othermembers ofthe genusthatdevelopataproot, this taxon appears to be either very rare throughout its taxonarisesfroma small, spherical, corm-like structure limited range or possibly under-collected due to its and produces few basal leaves. As suggested by the small size and ephemeral nature; likely both factors specific epithet, this taxon generally bears three leaves, contributetothepaucityofcollectionsofC.pygmaeum. but these are presented in a whorl along the short Herbarium label habitat descriptions are often wanting flowering stem. This widespread taxon is distributed for C. pygmaeum, but when present, these data suggest throughoutwesternNorthAmerica, fromsouthwestern that this taxon is often encountered in open areas in British Columbia in the north to Colorado in the east. pine forest, sometimes in mesic conditions, e.g., Prior to our collection, the southern-most occurrence meadow and creek margins. was from South Fork Meadows in Sequoia National Significance. In October 2008, C. pygmaeum was Park (Ferris andLorraine 10860, UC). added to the California Native Plant Society’s Inven- Significance. This collection of L. triphylla is the tory of Rare and Endangered Plants as a List IB.2. southwestern-most occurrence of the species, a new Following the listing, San Bernardino National Forest record for the Transverse Ranges (including the San (SBNF) botanists began to research the history ofthe Bernardino Mountains), and a new county record for three occurrences on SBNF lands. Through examina- San Bernardino Co. Interestingly, like C. pygmaeum, L. tion ofMunz’s field records, it was possible for SBNF triphylla has a disjunct distribution between the botanists to narrow the domain offocused searches in southern Sierra Nevada and the San Bernardino theBluffLakeareatotheregionsurroundingtheCastle Mountains. In the case of L. triphylla, this collection Rock Trail, approximately 0.3 km north of Forest is a 280-km southern range extension for the taxon. It Road 2N86. A population of C. pygmaeum was found seems likely that L. triphylla has escaped detection in in this area in 2010 by SBNF botanists Craig, this area due to its inconspicuous appearance. Addi- Richmond, and Day. A subsequent visit in 2012 by tional searches along stream margins following snow- Guilliams and Richmond documented numerous other melt in the spring may result in the location of occurrences in the general vicinity (C. M. Guilliamsand additional populations. G. Richmond 1915, 1917, 1920, 1921, 1923). These — recent collections are confirmation that the species C. Matt Guilliams, University & Jepson Her- remains extant in the San Bernardino Mountains. This barium and Department of Integrative Biology, Uni- is especially important given that the Bear Valley versityofCalifornia Berkeley, 1001 ValleyLife Sciences population from which Parish collected in 1886 was Building #2465, Berkeley, CA 94720-2465; Gina potentially extirpated during the flooding ofthe valley Richmond and Scott Eliason San Bernardino (initiated in 1884) to create Big Bear Lake. In addition, National Forest, 41374 North Shore Drive, Fawnskin, our limited surveys in the Bluff Lake area appear to CA 92333-0290. [email protected].