58 University of Califoniia Publications in Botany [Vol. 6 



brevibus. apice uniporosis, conneetivo infra lociilos longiiLscule pro- 

 ducto, antice bifido; iniiioriim antheris imperfectis, sessilibus, antiee 

 bitiibereulatis ; petalis mox deciduis, ovato-acuminatis, 4 mm. longis; 

 stylo elavato; seminibus cochleatis. 



By some of its cbaracters this is related to Heterocentron. Col- 

 lected on Sierra de Tonala. No. 6804. Type, Herb. Univ. Calif., No. 

 172493. 



Tibouchina aliena 



sp. nov. 



Frutescens: caulibiis aj)presse setulosis, racemosis : foliis 5-nerviis, 

 ovato-lanceolatis, 5-7 em. longis, 2-2.5 cm. latis, margine minute ser- 

 ratis, utrinque appresse setulosis ; petiolis ca. 1 cm. longis : floribus 

 pentameris, corymboso-racemosis, pedunculis axillaribus folia aequan- 

 tibiis vel superantibns, pedicellis basi bracteatis, 2-10 mm. longis; 

 calycis tubo late ovato, appresse setuloso, ca. 5 mm. lougo, lobis 

 persistentibus lineari-lanceolatis aequali ; staminibns fere aequalibus, 

 glabris ; antheris apice truncatis non attenuatis, poro magno dehiscent- 

 ibus: seminibus cochleatis. 



The longer anthers are slightly more attenuate than the shorter 

 five which are truncate, resembling according to the description those 

 belonging to the South American section Purpurella. Collected on 

 Cerro del Boqueron. No. 6772. Type. Herb. Univ. Calif., No. 172457. 



Tibouchina spathulata sp. nov. 



Frutescens: caulibus hirsutis, pilis patentibus. ramosis: foliis 5- 

 nerviis ovato-lanceolatis, 4-6 cm. longis, 2-2.5 cm. latis, margine 

 minute serratis, supra appresso-setulosis, subtus appresso-villosis ; 

 petiolis ca. 1 cm. longis : floribus pentameris paucis, ad apices ramu- 

 lonnu breve pedicellatis; calycis lobis acutis, usque ad 15 mm. longis, 

 tubo longioribus, spathulatis, appresse setulosis ; petalis rubris, oblongo- 

 ovatis, ca. 1.1 cm. longis, margine ciliatis; staminibus inaequalibus, 

 minoribus 5 antheris apice non attenuatis poro magno dehiscentibus ; 

 majoribus apice attenuatis, conneetivo longiori ; filamentis styloque 

 glabris : capsula quam calycis tubo breviori apice setullis instrueta : 

 seminibus cochleatis. 



Collected on Cerro del Boqueron. No. 6771. Type, Herb. Univ. 

 Calif., No. 172456. 



BlaKea Purpusii sp. nov. 



Fruticosa : ramis teretibus glabris: foliis juvenibus dense fer- 

 rugineo-tomentosis; adultis pergamentaceis, ca. 14 cm. longis, 9 cm. 

 latis, ovatis, apice abrupte acuminatis, basi cuneatis, margine integris, 

 supra glabris, subtus ad venas ferrugineo-tomentosis, 5-nerviis, nervis 



