446 Universihj of California Publications in Botany [Vol.7 



Houstonia australis sp. no v. 



Poronnis grlabra ; ('jiiilil)us e radieo multis. erectis. slmplicibiis vel 

 iiitci'duni ramo iino, tei-ctibiis, 80-45 cm. altis ; folii.s lincaribns, 

 acuiniiiatis, 25-45 iiiiii. loiigis, 1-2 mm. latis, valde costatis, oi)positis; 

 petiolis attenuatis; stipulis rainiitis, 2-4, setiferis; corolla hypercrateri- 

 infundibiiliformi, 7-9 mm. longa lit videtiir nifa, tubo 3-5 mm. longo 

 faucibns 1.5 mm. longis, tnbnlatis vel tubiilato- infimdibidiformibus 

 lobis obloiigis vel ovato-oblongis, 2.5-3.0 mm. longis, intns villosis 

 antheris exertis; stylo incluso; hypanthio 0.5-0.7 mm. alto, quando 

 frntescente fere 2 mm. alto ; capsula globosa, 4^ infera, diametro 2 mm. ; 

 seminibus 0.3-0.6 mm. longis, ovatLs, concavo-convexis, scrobienlatis, 

 bnmneis. 



Type. — Binorama, Baja California, September 27, 1899. T. S. 

 Brandegee. Sheet no. 201101 in Herb. Univ. Calif. 



Houstonia australis i.s known only from the mountains of the cape 

 region of Baja California whence it has been reported by Brandegee 

 as H. hreuipes. The nearest relative of H. aaistralis is H. a ng list i folia, 

 which has a far removed range, oblong instead of globose fruits, and 

 smaller corollas which vary between 4 and 7 mm. instead of between 

 7-9 mm. in length. Tloustonia hrevipes, which is lacking in the cape 

 region, has larger (9-15 mm. long) flow^ers, and narrower (under 

 instead of over a mm. wide) sessile rather than short petiolate leaves. 



