lus 



CONTKIBUTIONS KU(»M I'llK NATIONAL IIKIIHARIUM. 



involuciT in»iH>; iiivoliicj'l of srv«'i-iil linnir soiiictiincs rionifiitrd ln'iict 

 lot«; tlowjTs (Irrp piiiplr; fruit oMoii^', ;? mill. loii^'. Iliittnu'd liit«'nill\ . 

 crowiicil hy prdiiiiiicnt calyx tcftli; carpels iiioih' <»r less tlatt)'iic<l dor 

 .sully, the lateral and s(»iiictiiiics the dtwsal and iiiteriiiediate rihs more 

 or less \vin<;e(l-, stylopodiiim none; oil tiihi's several in the interval.-: 

 seed face plane. 



Typ«' locality, near (\»ronado mine. Clifton. .Vri/.. aiiioii}.'' rcwks in 

 moist criM'k; collccteil l»y .1. /A//vV/.v«*//. no. Itil. June 7, l!'<i(»; type in 

 r. S. Nat. llerh. 



.Vri/ona. 



SfnriiiK ii.'< i.niniiiiiil: 



Aki/dna: Type siicciincns an cilcd umlcr lypc Incalily. 

 Flowering inatcriiil of tliis H|KM'i»'8 wan wiit l»y !Mr. S. 15. I'lirisli in tlio winter of 

 18!(0-10(M1, Imt we were iiiiiilile to ileteniiiiie it. Dr. A. I)ii\ idsmi, Imwever, kindly 

 consented to re-euileet the HiK-cies in I'liiitinj; eimditinn. lie Iiiim jn:^t sent in speci- 

 ini'iiH, wlii<'li enable iih to characterize the specien. We are iniahie, however, to 

 decitle with deliniteiiess it.s generic relations. In habit it sn;:i;ests /'siiidociiiiiitjitirii,* 

 }ni>nl>iini.i, but thc^ fruit is (piite diff«'rent. From typical .!/(//.•< it likewise seeniH 

 different, but for the present there set-nis to Im' no better place for it. 



5. Aletes (?) tenuifolia V. Si K., sp. nov. 



Stems jflahrous. once to twice hranchin^'', shMider and weak, usually 

 longer than the leaves, I to '2 dm. lono-: leaves delicate, pinnate; leaf 

 lets 8 to .■». entire. Hliform to linear, acute. I to 'A cm. lonj^-; rays very 

 short {2 to 4 mm. lon}r); fruit suh.scssile (the pedicels 1 mm. or less 

 long); involucre wiinting; involucels linear, entire. .") to ») mm. Ions.''; 

 fruit ohlong. ;> to 4 mm. long, slightly roughened; s»'ed tlatteiied 

 slightly dorsally: rarpels rather strongly .^-rihhed; oil tul)es '2 or 3 

 in the intervals. 



Type locality, near Logan. Ttah; collect(>d l>v /*, .1, Rijdhii'ij^ August 

 9, l.SUr); type in New York Botanical (riirden herharium. fragmentfi 

 and photograph in W S, National Herbarium, 



S/)tritiiiii>i I'.rmiihicd: Type spt-ciniens as cite<l under type locality. 



We are at los,s just where to refer this species, and it is placed here (jiily teiiia- 

 tively. 



30. LEIBERGIA C. & R, Contr, Nat, HpH>, 3: 57o. isjm. 



Calyx teeth ob.solote. Fruit flattened latendly, linear, beaked, gla 

 brous. Carpels only slightly flattened dorsallv, with five filiform ril)s. 

 the two laterals ti little more prominent and turned inward. Stylo- 

 podium wanting. Oil tubes small, single in the intervals, two on the 

 commissural side. Seed face broad, slightly concave, but when dry 

 becoming more or le.ss involute. 



Slender glabrous iu-aule.seent plants from small globose tuber.s, 

 with leaves ternately divided into long filiform leaflets, irregular 

 umbels, subsessile fruit, and white flowers. 



A monotypic genus of the Columbia River region. 



