THE GENUS NOTOTRICHE. 243 
37. NoTOTRICHE SAJAMENSIS, A. W. Hill.— Fru£iculus depressus, ceespitosus, pulvinatus ; 
caudex subterraneus, lignosus, firmus, ramosus. Folia apice ramorum rosulata, 
plus minusve imbricata; petiolus 6-8 mm. longus; stipulee supra petiolum medium 
adnate et cum eo quasi vaginam membranaceam 4 mm. latam formantes, parte 
libera herbacea lineari- vel fili-formi obtusiuscula cirea 5 mm. longa 1 mm. lata 
uti vagina facie et in dorso glabra ad margines stellato-ciliata; lamina ambitu 
reniformis, flabellatim 9-11-fida, circa 4-5 mm. longa, 1:0-1:2 em. lata, supra plus 
minusve dense infra sparse stellato-tomentosa vel infra subglabra, segmentis 
profunde trifidis laciniis profunde bi- vel trifidis, lacinulis obovato- vel lineari- 
oblongis obtusis 1:5-2 mm. longis. Flores ime basi petioli insidentes, breviter 
pedunculati. Calyx supra medium 5-lobus, 8-9 mm. longus, lobis triangulari- 
ovatis obtusiusculis circa 3 mm. longis stellato-hirsutis, tubo  subglabrato. 
Corolla lutescenti-albida *, in sicco nigro-purpurea, 1:0-1:4 mm. longa; petala ovata, 
acutiuscula, basi in tubum circa 5 mm. longum coalita. Carpella circa 8, matura 
non visa, birostrata, rostris 1:5 mm. longis, dorso stellato-ciliata. 
Malvastrum sajamense, Hieron. iu Engl. Bot. Jahrb. xxi. p. 319, partim. 
BorrviA: Sajama, 4800 m., Stübel, 5 i. (Pl. 98. fig. 14), 5 ii. partim, 5 iii. ; Sajama 
vel Tacora, 4500—4800 m., Stübel, 108 i. partim (Herb. Berol.). 
CHIL: Volcano of Tacora, near Tacna, 4800-4900 m., Steinmann. 
Solms-Laubach f gives an account with some figures of N. sajamensis (cf. Pl. 28. 
fig. 14). As already noted, it appears to be allied with N. Orbignyana on the one hand 
and N. alternata on the other. 
The following species—the Pedicularifolia section—appear to be fairly closely allied and 
to form a natural group. The lamina is deeply divided into five distinct segments, which 
tend to be pinnately or bipinnately lobed with usually crenately-lobed and crisped lobulæ. 
The character of the leaf-lamina may be somewhat variable in a few species, especially 
in N. rugosa and in N. argyllioides (Pl. 27. figs. 6, 7); but in typical cases the median 
segment is much more strongly developed than the others, both as regards its length 
and the number of the lobes, so that a pinnatifid type of leaf tends to be developed from 
the palmatifid. W. Philippii shows the simplest type of leaf, in which each segment 
though pinnately lobed is equally developed. In the specimens of N. argyllioides 
collected by Weddell there is every gradation from an oblong inciso-crenate lamina 
(Pl. 27. fig. 6) to a regular deeply cut palmatifid type, and in my ET et ream of 
this species the development of the leaf has proceeded still further, becoming pinnatifid 
(Pl. 27. fig. 7), until it is closely similar to that of N. pedicularifolia (Pl. 27. fig. 5). 
The most striking of the forms included in this subsection is N. sulphurea, whose 
leaves are covered by a dense, yellow, woolly tomentum (Pl. 29. figs. 3, 4). It is some- 
What uncertain whether the forms which have been grouped together owing to the 
similarity of their leaf-form may or may not represent a real alliance ; the form of the 
corolla in N. pedicularifolia, N. Lorentzii, and N. sulphurea, where the tube is practically 
* Hieron. in Engl. Bot. Jahrb. xxi. (1896) p. 319. 
+ Solms-Laubach, in Bot. Zeit. 1907, pp. 129, 125, and figs. 1, 3, and 14. MS 
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