APRIL H), 1921 safford: synopsis of datura 183 



This is the large white-flowered Floripondio of the gardens of Northern 

 Chile, Peru, Honduras, Guatemala, and Mexico. It was figured by Ruiz and 

 Pavon, as above cited, under the name Datura arhorea, but is quite distinct 

 specifically from Pere Feuillee's plant, which was the type of Linnaeus's D. 

 arhorea. It is also distinct from Lagerheim's Brugmansia arborea' (see be- 

 yond, no. 18), the calyx of which is 2- to o-toothed, and the peduncle glabrous. 

 The specimens in the National Herbarium, like that figured by Ruiz and 

 Pavon, are characterized by a relatively short, loose, pointed, spathe-like 

 calyx. In the illustration of the fruit of the latter the calyx is represented 

 as persistent, but this may possibly be an error. 



12. Datura cornigera Hook. Curtis's Bot. Mag. pi. 42 j2. 1846. 

 Type Locality: Described from a cultivated plant of unknown origin. 

 Range : According to Hemsley, it occurs in the Valley of Mexico. 



Hooker points out the characters of this plant, which distinguish it from 

 closely allied species, and adds: "It is not the Datura arborea of Linnaeus 

 and of Feuillee, plate 46; nor the Datura arborea of Ruiz and Pavon's plate 

 128, which has a much larger flower, with the calyx deeply cleft but appressed 

 to the corolla. In the present species it runs out at the apex into a long, 

 subulate spreading point." 



1.3. Datura arborea L. Sp. PI. 1: 179. 1753. Fig. 1, G. 



Type Locality: "Habitat in Peru." 



R.\XGE: Peruvian Andes. Now widely cultivated in tropical and subtrop- 

 ical countries. 



This species was based by Linnaeus on the Stramonioides arboreum described 

 and figured by Pere Feuillee in his Journal des Observations Physiques, Mathe- 

 matiques et Botaniques, 1714, and is quite distinct from D. arborea Ruiz & 

 Pavon. The flowers of the type were about 15 cm. (6 inches) long, with the 

 corolla limb distinctly 5-lobed, the lobes separated by distinct sinuses or 

 notches, the peduncle clothed with whitish velvety pubescence, and the 

 broadly ovoid fruit quite devoid of calyx, about 6.25 cm. long and 5.6 cm. in 

 diameter. 



14. Datura versicolor (Lagerh.) Saft'ord. 



Brtigmansia versicolor Lagerh. Bot. Jahrb. Engl. 20: 666. 1895. 

 Type Locality: "Habitat in Aequatoria, ad 'Balsapamba' in regions tropica 



provinciae Los Rios." 

 Range : Known only from the type locality. 



A beautiful species with fragrant flowers, the corolla of which, at first 

 white, gradually turns to a brick red color. It is closely allied to D. 

 dolichocarpa, but differs from it in the form of its spindle-shaped fruit, 

 which terminates in a ver}^ long slender point. The petioles and peduncles 

 are quite glabrous. 



15. Datura mollis vSafford, sp. nov. 



Shrub or small tree, with pubescent, ovate-lanceolate, entire or remotely 



