Nov., 1912. DIAGNOSES OF SPERMATOPHYTES GREENMAN 337 



ii October, 1894, C. G. Pringle, no. 5677 (hb. Gray); hills of Soledad 

 de Etla, altitude 1985 m., 19 November, 1895, C. Conzatti, no. 968 

 (hb. Gray); Cerro San Felipe, altitude 1750 m., 10 October, 1897, 

 C. ConzatU & V. Gonzalez, no. 505 (hb. Gray). 



The species here proposed resembles /. dimorphophylla Greenm. to 

 which some of the collections cited above have been referred. I. 

 oaxacana, however, differs from I. dimorphophylla in having a distinctly 

 woody stem, uniformly shorter peduncles, persistently pubescent lower 

 leaf-surface, and conspicuously white-tomentulose pedicels. 



IPOMCEA PR^CANA House, Ann. N. Y. Acad. Sci. xviii. 227 (1908). 



Hereto are referred excellent flowering and fruiting specimens col- 

 lected by C. Conzatti at Estacion Almoloyas, altitude 800 m., State of 

 Oaxaca, Mexico, 29 September, 1907, Conzatti, no. 2052, in flower 

 (hb. Field Museum); De Almoloyas a Sta. Catarina, altitude 1000 m., 

 State of Oaxaca, Mexico, 26 December, 1906, Conzatti, no. 1656, in 

 fruit (hb. Field Museum). Senor CONZATTI'S specimens have been 

 compared with the type at the Gray Herbarium and are certainly con- 

 specific. The material, however, shows additional characters and 

 some variation in size of flowers which may be recorded as follows: 

 Inflorescentia cymosa; pedunculis i-5-floris; corollis usque ad 12 cm. 

 longis; capsulis ovato-oblongis circiter 2 cm. longis, glabris; seminibus 

 obovato-oblongis, 10-12 mm. longis, propter marginibus comatis, comis 

 1-1.5 cm - longis. 



BOURRERIA OBOVATA Eastwood, Proc. Am. Acad. xliv. 606 (22 May, 

 1909). Beurreria strigosa Brandegee, Univ. Calif. Pub. Bot. iii. 390 

 (24 May, 1909). 



Excellent flowering specimens of a very attractive Mexican shrub 

 have been communicated to the writer by Professor C. CONZATTI for 

 identification; these were compared recently at the Gray Herbarium 

 with the type of Miss EASTWOOD'S Bourreria obovata and prove to be 

 identical. Only two days subsequent to the date of publication of 

 Miss EASTWOOD'S paper, Mr. BRANDEGEE issued a paper dealing with 

 a collection of plants made in Mexico by Dr. C. A. PURPUS and among 

 other novelties described Beurreria strigosa founded on Purpus' no. 

 3360. This material is almost the counterpart of the type of B. obovata, 

 hence by the rule of priority B. strigosa must give way to the earlier 

 published name. In addition to the material cited in the above publica- 

 tion the following may be recorded: Cuesta de Quiotepec, District of 

 Cuicatlan, Mexico, altitude 600 m., 21 June, 1909, C. Conzatti, no. 2480 

 (hb. Field Museum). 



