STAND ley: a remarkable new geranium 601 



cus, Sanicula, Portulaca, Vaccinium, Ranunculus, Osteomeles, 

 Silene, Cleome, Nertera, Gnaphalium, Sida, Viola, Hibiscus, 

 Drosera, Acaena, Colubrina, and Dioclea, as well as of many 

 other genera, all of these more or less closely related to American 

 representatives of the same groups. 



Among the most interesting Hawaiian plants is a peculiar 

 assemblage of species of Geranium, designated by Dr. Gray as 

 the Neurophjdlodea, well distinguished by their habit and by 

 the peculiar form of their leaves. The new Geranium here 

 described, while possibly deserving rank as a separate section 

 of the genus, is most closely related to the Neurophyllodea, and 

 if included in that section it is the first extra-Hawaiian species 

 thus far discovered. 



Geranium jahnii Standley, sp. nov. 



A low shrub, 10 cm. high, from an elongate woody root; stems very 

 stout, 2-3 cm. in diameter, branched, the branches ascending, the 

 older ones nearly black, the others densely covered with the persistent 

 stipules and petioles, the leaves present only at the apices of the 

 branches; stipules 3-4 mm. long, lanceolate, attenuate to rigid setaceous 

 tips; leaves densely crowded, the blades jointed with the petioles, these 

 1.5-2 mm. long, appressed, persistent; leaf blades cuneate, 6-8 mm. 

 long, coriaceous, yellowish green, more or less tinged with red, glabrous, 

 shallowly 3-Iobed at the apex, the lobes triangular, acutish, the middle 

 one longer than the others; peduncles 1-flowered, 9 mm. long, densely 

 pilose with short spreading whitish hairs, the flowers apparently cernu- 

 ous; sepals 6 mm. long, elliptic-oblong, acutish, short-mucronate, 

 villous-cihate, pilose, especially near the base; petals 9 mm. long, 

 spatulate-obovate, purplish, broadly rounded or truncate at the apex, 

 glabrous; filaments dilated at the base, the outer shorter than the inner 

 ones; fruit not seen, the ovary densely white-pilose at the base, the 

 beak glabrous. 



Type in the U. S. National Herbarium, no. 602229, collected on the 

 Paramo del Jabon, State of Trujillo, Venezuela, altitude 3000 to 3200 

 meters, October 2, 1910, by Dr. Alfredo Jahn (no. 34). The branches 

 of the plant are covered with lichens, an indication of the humidity 

 of the region in which it grows. 



Although the material at hand is not so ample as might be desired, 

 it is sufficient to show the proper position of this remarkable plant. 

 Using Knuth's key to the sections of the genus,"* which is based largely 

 on habit, the present plant will run at once to the section Neurophyll- 



* In EngL Pflanzenreich, 53: 44-47. 1912. 



