STANDLEY TREES AND SHRUBS OF MEXICO. 853 



3. JARILLA Rusby, Torreya 21: 47. 1921. 



Plants herbaceous, glabrous, branched, from tuberous rhizomes; leaves sim- 

 ple, entire, toothed, or lobed ; flowers dioecious, axillary, the staminate in 

 long-pedunculate panicled cymes, the calyx minute, the corolla funnelform, 

 with a slender tube ; stamens 10, the filaments united at base, hairy, the alter- 

 nate ones longer; pistillate flowers usually solitary, slender-pedicellate; fruit 

 pendent, 1-celled, 5-angulate, each angle produced at base into a long recurved 

 fleshy appendage, the style persistent and elongate; stigmas entire. 



The genus, so far as known, is confined to Mexico. It was discussed at 

 length by Ramirez,* who gives excellent illustrations of both the species. 

 Leaves hastate, the basal lobes narrow, elongate, acute; fruit only slightly 



contracted above the appendages 1. J. heterophylla. 



Leaves various but not hastate, the basal lobes, if any, obtuse or rounded ; fruit 



strongly contracted above the appendages 2. J. caudata. 



1. Jarilla heterophylla (Llave) Rusby, Torreya 21: 50. 1921. 



Mocinna heterophylla Llave, Registro Trimestre, June 12, 1832. 



Carica nana Benth. PI. Hartw. 288. 1848. 



Jalisco and Guanajuato ; type from Guanajuato. 



Plants said to be sometimes scandent, slender ; leaves hastate, 2.5 to 10 cm. 

 long, acute or attenuate, entire or with a few large remote teeth, pale beneath ; 

 staminate corolla 5 mm. long, the lobes as long as the tube; fruit subglobose, 

 2.5 cm. in diameter, with short thick appendages. " Jarrilla," " granadilla." 



The writer has seen only a single specimen of this species, consisting of 

 staminate plants from La Palma, Jalisco. 



2. Jarilla caudata (T. S. Brandeg.) Standi. 



Mocinna heterophylla sesseana Ramirez, Anal. Inst. Med. Nac. Mex. 1: 207. 

 pi. 2-Jt. 1894. 



Carica caudata T. S. Brandeg. Zoe 4: 401. 1894. 



Jarilla sesseana Rusby, Torreya 21: 47. 1921. 



Baja California, Sinaloa, Jalisco, and Guanajuato ; type from mountains of 

 Paja California. 



Plants slender, 1 meter long or less, erect or decumbent, the root large ; leaves 

 long-petiolate, very variable, rounded-ovate to deltoid or deltoid-oblong, 2 to 12 

 cm. long, acute to rounded at apex, cuneate to cordate at base, entire, undulate, 

 dentate, or lobate, pale beneath ; staminate inflorescence long-pedunculate, the 

 <*orolla purplish white, about 1 cm. long, the lobes much shorter than the tube ; 

 pistillate flowers usually solitary, long-pedicellate ; body of the fruit ellipsoid or 

 subglobose, sometimes 9 cm. long, the elongate fleshy style 1 to 2 cm. long, the 

 appendages 3 to 5 era. long ; seeds surrounded by a white aril. " Jarrilla " 

 (Guanajuato, Jalisco) ; said to be known as " bonete " in Jalisco. 



The fruit has an odor resembling that of lemon or citron. It is usually 

 employed for making preserves or sweetmeats, and is well known in the 

 markets of Jalisco and Guanajuato. 



The specimens which have been referred here by Ramirez and by the present 

 writer are remarkably variable, and it is not improbable that they represent 

 more than a single species. The writer has seen only six collections, and they 

 are quite inadequate for critical study. It is desirable that a large series of 

 specimens be collected of these plants, which are practically unknown outside 

 the limited area within which they grow. 



* Anal. Inst. M6d. Nac. Mex. 1: 205-212. pi. 2-5. 1894. 

 79688—24 2 



