CHILE AND ITS ADJACENT REGIONS. _ 107 
5. DıostEA VALDIVIANA, nob. : Dipyrena Valdiviana, Philippi, Linn. xxix. 31: arbuscula 
glaberrima, ramosa, ramis ramulisque oppositis, elongatis, virgatis, subfistulosis, 
striolatis, brunneis: foliis oppositis, lanceolato-oblongis, acutis, mucronatis, inte- 
gerrimis, aut apice obsolete dentatis et tunc dentibus utrinque 3, coriaceis, enerviis, 
utrinque brevissime scabrido-pilosulis; petiolo imo incrassato, intus pubescente, 
brevi : spicis terminalibus, brevissimis, rachi pubescente ; floribus circiter 20, azureis, 
fere sessilibus, e cupulis carnosis alternis ebracteatis crebre singulatim ortis et in 
verticillis interruptis subaggregatis ; calyce ovato-inflato, carnoso, subpilosulo, ore 
constricto, e nervis excurrentibus 5-denticulato, dentibus intus pilosis, persistente, 
demum aucto, glabro, submembranaceo, nitido; drupa calyce inclusa, carnosula, 
glabra, 2-pyrena, pyrenibus 1-locularibus.—In Chile, prov. Valdivia circa Osorno : 
v. 8. in hb. Hook. in fructu, prov. Valdivia ad Huiti (Lechler, 615). 
This is described as an arborescent shrub, about 20 feet high, woody at the base, 
throwing up numerous repeated ramifications, which are slender and virgated : the axils 
in the branches are about 2 inches, in the branchlets 1 inch apart; the flowering branch- 
lets are 3-10 inches long: the leaves are 3-9 lines long, 2-3 lines broad; the terminal 
spikes are 4 inch long: the style is scarcely exserted: the drupe is 14 line long, and its 
nucules are constructed as in the typical species. 
6. DIOSTEA SCIRPEA, nob.: Lippia scirpea, Philippi, Linn. xxxiii. 196; Ann. Univ. Chil. 
(1862) ii. 402: fruticosa, subaphylla, glabra, ramosa ; ramulis elongatis, striatis ; 
foliis oppositis, minimis, oblongis: spicis terminalibus; floribus bifariis, laxis, 
bractea squamiformi instructis ; calyce longe tubuloso, glabro, dentibus insequalibus, 
subulatis; corolle albidæ tubo calyce duplo longiore, fauce pilosa ; fructu ignoto.— 
In Andibus Chilensibus, paso de los Piuquenes (Diaz). (Non vidi.) 
This plant, very closely allied. to Diostea scoparia, was found in the Portillo de los 
Piuquenes, the summit pass of the main ridge of the Cordillera, where it attains an 
elevation of 10,000 or 12,000 feet, and forms the head source of the river Maypo on one 
side, while to the eastward it leads into the valley of the Tupungato, and finally debouches 
upon the plains near Luxan, 5 leagues to the southward of Mendoza. It is evidently a 
small shrub with many lignescent branches rising from the base, and divided into 
numerous branchlets 1 foot long, 1} line thick, with axils 1-13 inch apart ; below they 
are aphyllous, but the younger and more slender branchlets have opposite, almost pat 
miform leaves 11 line long; the spikes are 1-2 inches long; the subulate bracts are 14 
line long; the pedicels scarcely 1 line long; the calyx is 23 lines long ; the tube of the 
corolla is curved, 4 lines long, the border being 4 lines in diameter, its lobes are of a 
sulphur-colour when dry, with black veins. Doctor Philippi suggests that this plant 
may be identical with Dipyrena glaberrima, Hook.; but had he seen the latter, such an 
idea would never have occurred to him. 
7. DiostEA INFUSCATA, nob. : Lippia juncea, Gay, in parte (non Sch.), Fl, Chil. y. 50: 
suffruticosa, ramosa, ramis teretibus, virgatis, fistulosis, striolatis, glaberrimis, sicci- 
