80 NORTH AMERICAN FAUNA. 



Pilocaipus iusularis Roso, sp. nov. 



Tree 3 to 6 meters liigb, glabrous throughout; leaflets usually in 

 threes, some solitary or in rows, 5 to 7.5 cm. loug, retuse at apex, 

 cuueate at base, in the lateral oues more or less oblique; midveiu 

 prominent, lateral veins indistinct below, not very prominent above; 

 racemes short and compact, 5 to 10 cm. long; fruiting pedicels hori- 

 zontal, 10 mm. long; ovary deeply 1 or 5-lobed or parted, 1 to 4 lobes 

 not maturing. 



This species is near P. longipes of Mexico, but with somewhat different 

 leaves, more compact inflorescence, etc. Collected by E. W. Nelson on 

 Maria Madre Island. May 3 to 25, 1897 (No. 1307). 



Amyris sp. 



May 3 to 25, 1897 (No. 4237). 



Picraniuia s\>. 



A tree 4.5 to 7.5 meters high; flowers said to be greenish, but none 

 with specimens. Much resembling the South American species F. ciliata 

 Mast., but without flowers or fruit. Exact identification is doubtful. 

 May 3 to 25 (No. 4270). 



Ochiia sp. 



May 3 to 25 (No. 4238). 

 Bursera gummifera .Tacq. 



Oonmion throughout tropical Mexico, Central America, the West 

 Indies, and extending into Florida. May 3 to 25 (No. 4227). 



Guarea sj). 



May 3 to 25 (Nos. 4222 and 4230). 

 Trichilia spondioides Swartz. 



Common in tropical America. May 3 to 25 (Nos. 4214 and 4309). 

 Ximeuia americana L. 



Common in most tropical countries. May 3 to 25 (No. 4224). 

 Schoepfia schreberi Giuel. 



Seemingly rare, but has been collected in Mexico and South America. 

 May 3 to 25, 1897 (No. 4271). 



Hippocratea sp. 



Maria Magilalena Island, May 20 to 28 (No. 4320). Maria Madre 

 Island, May 3 to 25 (No. 4226). 



Colubrina aiborea Braiulegee. 



Reported from Lower California and the west coast ot Mexico. May 

 3 to 25 (No. 4213). 



Cissus sicyoides L. 



A common species in tropical America. May 3 to 25 (No. 4198). 

 Serjauia mexicaua Willd. 



A common species in tropical America. May 3 to 25 (No. 4231). 



