202 PROCEEDINGS OP THE AMERICAN ACADEMY 



acuminatis integerrimis petalis obovatis albis brevioribus ; ovariis 

 paucis (5-9) etiam druiiellis carnosis tomentulosis. — Oregon, near 

 Mount Hood, E. Hall, 1871 (no. 140), J. Howell, 1878. — In the 

 account of Hall's collection this was inadvertently called R. pedatus 

 (some of which was mixed with it) ; from which it is quite different, 

 being much less slender, with thicker leaves which are seldom divided, 

 some of the larger not unlike small ones of R. ChamcBmorus. Flowers 

 not much larger than those of R. pedatus, the petals broader, five 

 lines long. The cauescent dense ttmentum of the ovaries is seen 

 even on the mature drupelets. 



RiBES VIBURNIFOHUM. Rihesia, modo R. nigri resinoso-atomiferis; 

 foliis ovalo-rotuudis utrinque obtusissimis (nee cordatis nee plicatisj 

 inciso-paucidentatis nunc obsolete trilobis glabris (petiolo excepto) 

 demum coriaceis (pollicem longis): racemo subsessili corymbiformi 

 plurifloro, pedicellis filiformibus, bracteis scariosis caducis ; calycis 

 tubo turbinato demum oblongo, limbo rotato 5-partito roseo, lobis 

 ovalibus ; petalis minimis patentissimis viridulis filamentisque bre- 

 vissimis margini disco lato piano insertis. — Northern part of Lower 

 California, near All Saints Bay, Parry, Pringle, and Marcus Jones, 

 April, 1882. A sti-aggling bush, so peculiar that the acute collectors 

 did not recognize the genus. Yet the flowers have all the characters 

 of the Rihesia section, and the conspicuous glands of the leaves, 

 young shoots, pedicels, &c., are just like those of R. nigrum. 



HousTONiA Wrightii. Pumila (2-5-pollicaris), e radice ut 

 videtur perenni multicaulis, suberecta, fere glabra ; stipulis scariosis 

 subintegris ; foliis linearibus muticis, imis sublanceolatis ; cymulis 

 foliosis ; calycis lobis subulato-lanceolatis tubo brevissimo 2-3-plo 

 longioribus corollee subinfundibuliformis (lin. 3-4-longjE) tubo saepius 

 dimidio brevioribus ; capsula subdidymo-globosa ^ libera ; seminibus in 

 loculis 5-8 crateriformibus. — Hedyotis humifusa, Gray, PI. Wright, 

 i. 82, & Oldenlandia humifusa^ PL Wright, ii. 68, non PI. Lindh. ii. 

 216. On the Limpio, Western Texas, Wright, Fort Whipjile, Ari- 

 zona, Palmer, 1865, no. 75. New Mexico, T/mrher (?), Greene, 1877. 

 Arizona in the San Franc'sco Mountains, Greene, 1880, no. 400. 

 Arizona, Dr. Budd, Pringle, Lemmon, 1881, no. 512. Santa Magda- 

 lena, New Mexico, 1881, G. R. Vasey. The tube of the corolla is 

 sometimes almost twice the length of the lobes, sometimes shorter, 

 broader, and hardly longer than the lobes. 



HousTONiA Palmeri. H. aspervloides et //. angustifolice sat 

 proxima, fere glabra; caulibus e radice perenni diffuso-ramosissimis 



