286 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.51. 



No specimens referable to Fraxinus libheyi were found in the un- 

 worked collection, but in the Lacoe material, now the property of 

 the United States National Museum, was found the type of Ostrya 

 hetuloides Lesquereux, the careful exammation of which convinces 

 me should be referred to this species. As Lesquereux did not figure 

 the type of his Ostrya hetuloides, this occasion is taken to illustrate 

 it [pi. 24, fig. 5]. It may be seen from this figure that it is practi- 

 cally indistinguishable from the smaller leaflets of Fraxinus lihbeyi, 

 and consequently it is referred to that species. 



FEAXINUS UNGERI Lesquereux. 



Plate 22, fig. 3; plate 23, figs. 1, 2. 



Fraxinus ungeri Lesquereux, Rept. U. S. Geol. Surv. Terr., vol. 8 (Cret. 

 andTert. Fl.), 1883, p. 171. 



Types.— C&t.'N OS. 50,321, 50,322, 50,323; U.S.N.M. [Lacoe No. 57.] 

 This species was described but not figured by Lesquereux, and as 

 the three specimens upon which it is based are now in the United 

 States National Museum, they are here illustrated for the first time. 

 Of these figures, 1 and 3 of the above-mentioned plates are probably 

 conspecific, but it is perhaps doubtful if the other specimens belongs 

 vrith them. Figure 3 is very much hke what Lesquereux ' has figured 

 as Diospyros Irachysepala Al. Braun, except it is more wedge shaped 

 at base. It also resembles Andromeda delicatala Lesquereux, as 

 figured on the same plate. 



Family CONVOLVULCEAE. 



PORANA TENUIS Lesquereux. 



Plate 27, figs. 4-6. 



Parana tenuis Lesquereux, Rept. U. S. Geol. Surv. Terr., vol. 8 (Cret. and 

 Tert. Fl.),1883, p. 173. 



Type.— C&t. No. 50,344, U.S.N.M. [Lacoe's cabmet. No. 71] fig. 6. 

 This species was described as follows by its author: 



Calyx large, thin; sepals distinct to the base, oblong, obtuse; veins distinct, dis- 

 tantly obliquely branched. 



The type of this species, now figured for the first time, is seen to be 

 a very perfect specimen indeed, the 5 oblong, rather obtuse sepals 

 being practically of equal size, and distinct nearly or quite to the base. 

 The mdividual sepals are about 15 mm. long and about 5 mm. 

 wide, each being provided with about three distmct nerves, which 

 arise at the base and are sparmgly once-forked at or above the middle. 

 In the exact center where the sepals come together there is a circular 

 scar about 2 mm. in diameter which may represent the point of at- 

 tachment to the pedicel or the attachment of the capsule. 



1 Lesquereux, Leo, Cret. and Tert. Flora, pi. 34, fig. 2. 



