California:

PORTERELLA CARNOSULA (Hook. & Arn.) Torr. (CAMPANULACEAE).—Coconino Co., AZ, Fort Valley, just SW of the lower flanks of the San Francisco Peaks, Coconino National Forest. Plants dominating several small swales, growing in wet soil from desiccated ephemeral pools. UTM zone 12, 432968 E, 3902771 N, ca. 2225 m, with Geum triflorum, Poa pratensis, Ranunculus cardiophyllus var. cardiophyllus, Plagiobothrys scouleri var. hispidulus, Limosella acaulis, Eleocharis ovata, Myosurus apetalus var. montanus. 22 June 2005, K. Christie 788 (ASC). Previous knowledge: AZ, UT, CA, NV, OR, ID, WY. Significance: First collection in AZ since 1927. CRYPTANTHA MINIMA Rydb. (BORAGINACEAE).— Coconino Co., AZ, Babbitt Ranches, ca. 4.5 km W of Double Top, private land. Plants growing on a flat, open slope in fine-textured clay-based soil. UTM zone 12, 408389 E, 3941541 N, ca. 1875 m, with Pinus edulis, Juniperus monosperma, Gutierrezia sarothrae, Bouteloua gracilis. 10 June 2005, K. Christie 641 (ASC). Previous knowledge: TX, OK, NM, CO, KA, NE, SD, WY, MT, mostly on the plains east of the continental divide. Significance: First record for AZ; range extension of ca. 500 km W and SW respectively, from central NM and southwest CO populations. SUCKLEYA SUCKLEYANA (Torr.) Rydb. (CHENOPODIACEAE).—Coconino Co., AZ, Red Lake, ca. 3.5 km W of Cedar Mountain, private land. Plants growing in disturbed, wet soil/mud at the edge of a lake. UTM zone 12, 394613 E, 3915285 N, ca. 1975 m, with Rumex salicifolius, Gnaphalium exilifolium, Limosella acaulis, Coreopsis tinctoria, Elatine brachysperma, Eleocharis palustris. 16 September 2005, K. Christie 1193 (ASC). Previous knowledge: TX, OK, NM, CO, KA, NE, ND, WY, MT. Significance: First record for AZ; range extension of ca. 300 km W from Catron Co., NM. PANICUM MOHAVENSE J. Reeder (POACEAE).— Coconino Co., AZ, Babbitt Ranches, Rabbit Canyon, private land. Plants growing in small pockets of soil on a limestone bench. UTM zone 12, 427392 E, 3939582 N, ca. 1975 m, with Pinus edulis, Juniperus monosperma, Gutierrezia sarothrae, Bouteloua gracilis. 3 October 2005, K. Christie 1300 (ASC). Previous knowledge: Mohave Co., AZ; and seen in 1998 in Socorro Co., NM. Significance: New locality for a critically imperiled (G1) species; first record for Coconino Co.; range extension of ca. 250 km E from Mohave Co., AZ.

Violation of charge symmetry can be expected to cau~se appreciable differences between "symmetric" processes in total rates 9 angular distribvtionrJp rnomentura spectra.
. ' magnets and one parallel-plate spectrometer •. Subsequently, a·beam o£ negative pions was selected a~ the same momentum· and brought into .the cham her.
These could be much more readily identified tha11 the reactions yielding charged· sigma hyperons (as secondary scatters from nelltrons often simulated sigma decay).
The "IT+ film. was scam1ed for all single-vee decays associated with one or two charged prongs; scanning of the 'l't-film consisted o! recording all singl~ -vee and double :..vee . .
considered good if the x. value was le.ss than ZS. · If x values for K 0 and l\ dc;:cv.y were co:n:-parable, a: decision coUld generally be made· on the basts of ionization. AmUguous. events were usually found to be lan~bda decays.) Most of the lambda. evcnta \.Vith acceptable .decay fits in the 1r + filrn. gave good fits at production; how~v(a:.,.~ ~ . i the lan"Lbda event:s in the 'iT .. film could not be fitted unless ·the 1< 0 decay were ob::./ervcd.
Siuce many events were impossible to fit at production. only the criterion for tha . . . ; . . . ' + . ' decay fit was imposed for. the acceptance of an event, both in the w and w-£il:n.

IV. CONCLUSIONS
Compadson has been made of results from seven measured quantities (xi}. i.e. • di.f.f'e1·ential cross section (the 6 regions of Fig. 3) and asymmetry ~f · lambda. decay, for the two reactions · and · 'it'++ d -A( or ~1 ) + K+ + p 'fi'-+ d-A( or I: 0 ) .+ K 0 + n. The differential cross sections were normalized;to the san'le total erose section for this studyp since. the total rates had not been very accurately determined.
This comparison shows that the reactions, and hence the K mesonsg are charge-symmetric. A quantitative statement ca.n be made by calculating . from the expel"imental data is 5. 9.

ACKNOWLEDGMENTS
It is a pleasure t9 thank the engineers o£ the 7Z .. incli bubble cha1nberu under the direction o£ Bob Watt,: for their assistance in pr'eparingthe deuterimn-· fiiled chamber-and the taking o£ film.

4.
Events with the four-body final state A(K 0 ) Ti'-p appearing as vee-two prongs in the 'iT-film were rilea~ured and fitted as the charge-symmetric counterparts ' + . ' of 4-body states accepted.i~ thew .film; they const~t~ted less than So/i.of all .

MU-27055
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Ao
Makes any warranty or representation, expressed or implied, with respect to the accuracy, completeness, or usefulness of the information contained in this report, or that the use of any information, apparatus, method, or process disclosed in this report may not infringe privately owned rights; or Bo Assumes any liabilities with respect to the use of, or for damages resulting from the use of any information, apparatus, method, or process disclosed in this reporto As used in the above, "person acting on behalf of the Commission" includes any employee or contractor of the Commission, or employee of such contractor, to the extent that such employee or contractor of the Commission, or employee of such contractor prepares, disseminates, or provides access to, any information pursuant to his employment or contract with the Commission, or his employment with such contractoro