OF ARTS AND SCIENCES. 151 



globose, finely pubescent, 4 or 5 lines broad, the orifice somewhat um- 

 bonate and closed by numerous rows of imbricated rigid bracts; 

 flowers shortly pedicellate, the pistillate with short style and nearly 

 equal concave petals, the starainate with two strongly cucullate sepals 

 and a broad obtuse nearly sessile anther. — In the barranca near Gua- 

 dalajara ; December, 1889 (n. 2928). 



Ficus (Phakmacosyce) Guadalajauana. Young branches 

 sparsely pubescent: leaves coriaceous, pinnately veined, oval, acutish 

 at each end, 2 to 4^ inches long by 1 to 2| broad, on pubescent petioles 

 3 to 8 lines long, very scabrous above, reticulately veined beneath, and 

 rather soft-pubescent especially on the prominent veins: fruit solitary, 

 on peduncles 4 lines long, globose, very shortly stipitate and with a 

 very narrow undulate involucre, 6 to 9 lines in diameter ; the bracts 

 within the orifice linear and strictly inflexed, rufous ; staminate and 

 gall-producing flowers on rather slender bracteate pedicels, the fertile 

 nearly sessile; sepals of the staminate flower 4, broadly elliptical, the 

 2 nearly sessile anthei's ovate-elliptical, obtuse ; sepals of the pistillate 

 flower linear, acuminate; bracts and sepals rufous. — In the barranca 

 near Guadalajara; October, 1889 (n. 2947). The galls were found 

 occupied by a black winged insect, — the only instance in which I have 

 detected the gall-fly in any of our species, though doubtless often pres- 

 ent. Mr. Riley informs me that he finds in this same fruit gall- 

 insects of three different genera. 



Ficus (Pharmacosyce) radulina. A tree with rather stout 

 finely pubescent brancblets : leaves thin-coriaceous, oblong-lanceolate, 

 acute or short-acuminate, 3-5-nerved and acutish at base, very mi- 

 nutely rougliish-punctate above becoming smooth, glabrous beneath, 3 

 to 6 inches long by 1^ to 2^ broad, on petioles 8 to 16 lines long : fruit 

 slightly pubescent becoming glabrous, obovate-globose, 10 lines broad, 

 iuvoluciate with 3 short-deltoid deciduous bracts, solitary, on peduncles 

 2 or 3 lines long; orifice somewhat prominently margined, closed by 

 numerous intruded narrowly linear bracts: staminate flowers p( dicel- 

 late, with deeply 4-5-cleft perianth, the lobes lanceolate, acute ; sta- 

 mens 2 or sometimes l,the anthers elliptical, obtuse; pistillate flowers 

 sessile or pedicellate, 4-5-parted, the sepals narrowly linear. — Col- 

 lected by Dr. Edward Palmer at Hacienda San Miguel near Hatopilas 

 in southwestern Chihuahua, in 1885 ('' L."), and again in March, 

 1890 (n. 367), at Alamos in Sonora. The species much resembles 

 F. radula and F. anthelmintica. In the fruit examined an appar- 

 ently perfect flower was occasionally found, perhaps however only 

 pseudo-hermaphrodite, as in the few East Indian species of which 



