149 
XXIII.—NEW SPECIES FROM MOUNT EVEREST. 
These new plants were collected by Mr. A. F. R. Wollaston, 
Medical Officer and Naturalist to the Mount Everest Expedition, 
1921, and a complete set of the whole collection was presented 
to the Royal Botanic Gardens, Kew, by the Mount Everest 
Committee. 
Mr. Wollaston has kindly supplied some particulars concern- 
ing the habitats :—- : 
“The plants described in the following paper were collected 
in Tibet between May and September 1921, and with two excep- 
tions they were all found in the neighbourhood of Mount Everest. 
The Androsace was found flowering in May at 17,000 ft. on 
Chumolhari, a mountain about 130 miles E. of Mt. Everest. 
Primula Buryana was found near Lapche Kang, about 50 miles W. 
of Mt. Everest; it was seen in one place only where it covered 
the ground for an acre or more, and so white was it that it was 
difficult to see when the ground was covered with a sprinkling of 
snow. 
“The region of about 13,000 ft. represented by a Tanacetum 
and a Dracocephalum, is a comparatively dry zone, more Tibetan 
than Himalayan in character. The region above 15,000 ft., from 
which come two Primulas and a Gentian, is characterised by an 
abundant moisture, that is to say, it is more often than not 
enveloped in a dense and dripping fog. Of the two Primulas 
P. Wollastonii, which was also found near Lapche Kang, has a 
very restricted range at 15,000 ft., where it is found growing on 
sheltered mossy slopes: P. Younghusbandii was found from 
17,000 to nearly 19,000 ft. under the shelter of large boulders; 
the newly-opened flowers of this species are white, becoming a 
pale mauve after a few days. Gentiana stellata has a still wider 
distribution from 14,000 to 18,000 ft. being most abundant at 
16,000 ft. in the early part of September.” 
Aconitum orochryseum, Stapf [Ranunculaceae-Helleboreae] ; 
affinitatis dubiae ob tubera et semina ignota, nectariis ut in 
A. Anthora, L., sed inflorescentia pauciflora laxa, galeae forma 
foliisque admodum diversa; potius ad sectionem Napellum refer- 
endum sed corolla aurea, galea, nectariis a species Asiae centralis 
et Indiae distinctissimum. i 
Tubera ignota. Caulis pars exstans 20 cm. longa, gracilis, 
subflexuosa, superne aureo-tomentella, inferne mox glabrescens 
pilis crispis, simplex. Folia caulina 2-na, versus laminae ortum 
densius caeterum parce aureo-pubescentia vel praeter nervos 
subglabra, petiolata, petiolo folii inferioris 2-5-5-5 cm. longo, 
superioris (florem infimum subpetentis) 0-7-1 cm. longo; lamina 
folii inferioris ambitu late reniformis vel late cordato-ovata, 
sinu lato, a sinu ad apicem 3-4 cm. longa, 4-7 cm. lata, 5-sub- 
pedati-partita, divisionibus ambitu oblongis vel obovato-oblongis 
vel intermedia lanceolata grosse laciniato-dentatis, laciniis ve _ 
