TUBER-BEARING SPECIES OF SOLANUM. 491 
specimens I have seen are—(1) Ex herb. E. C. Reed ; (2) gathered 
by Prof. Moseley, on the * Challenger? Expedition, Nov. 1875, in 
flower; and (3) Bertero, labelled * Forte spontaneum; vulgo, 
“papa silvestre’; tubercula gustu amara ; in sylvis umbrosis mon- 
tium editorum ins. Juan Fernandez, April. 1830," leaves only. 
4. SonANUM Macra, Schlecht.—This is mentioned vaguely by 
Molina, but was first clearly characterized by Schlechtendahl in 
his ‘ Hortus Halensis, p. 6. We have grown it now for upwards 
of twenty years at Kew side by side with S. tuberosum, and it 
has maintained its individuality. The following are my notes 
upon it made this summer from the living plant in the Kew 
herbaceous ground:—Rootstock bearing copious large tubers. 
Stems stout, erect, flexuose, much branched, 1-2 feet long, slightly 
hairy, strongly winged on the angles. Leaves pseudo-stipulate, 
6-9 in. long, including the 14-2 in. petiole; large leaflets 5-7, 
ovate, acute, thinly pilose, 2-3 in. long, the side ones stalked and 
unequally cordate at the base; lowest pair of leaflets much 
dwarfed; interspersed small ones few or none. Flowers in 
copious compound long-peduncled cymes; pedicels downy, under 
an inch long, articulated about the middle. Calyx 4-4 in. long, 
hispid ; teeth deltoid-cuspidate, longer than the tube. Corolla 
white, subrotate, $-1 in. diam.; segments deltoid, 2 in. long and 
broad. Anthers j in. long, bright yellow; filament very short. 
Style clavate, twice as long as the stamens. Fruit not seen.— 
Schlechtendahl sums up its geographical range in Chili as fol- 
lows :—“ Crescit maxima copia in littoris maris clivis argillosis 
saxosis rupibusque (arenosa et fertilia loca spernens) inter 15- 
400 ped. altitudinem, i unquam longius terram intrans quam 1-2 
leguas, a portu Valparaiso regni Chilensis boream et austrum 
versus." The wild specimens I have seen are as follows, viz. :— 
(1) Matthews, 311, * Seaside, Valparaiso, Sept. 1830;" (2) 
Bridges, 401, “ Valparaiso, near the coast;" (3) Harvey, “Common 
near Valparaiso, April-July, 1856 ;" (4) Cuming, 555; (5) Mac- 
rae, ** Valparaiso, Feb. 1825," in the Lindley herbarium. Accord- 
ing to a note in the herbarium by Sir J. D. Hooker, the Kew 
specimens were raised from small tubers given to the Garden by 
Dr. Selater in 1562, and the plant bore no tubers in 1863 or 1864, 
when grown in the arid sandy soil of the nursery pleasure-ground. 
There were specimens in Gay's herbarium, dried, from the grounds 
of M. Vilmorin, in Oct. 1865, with the following note :—“ Croit 
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