OF THE GENUS SYMPHYTUM. 551 
Hybrids between S. officinale, Linn. and S. tuberosum, Linn. 
S. ZAHLBRUCKNERI, Sennholz.—* All leaves, especially the upper ones, 
elongate lanceolate, broadest at the middle, acuminate. Racemes mostly 
terminal. Calyx green. Corolla-scales exceeding stamens. Stem 26- 
3°4 dem. high. 
Has. Lower Austria: Piesting between Waldegg and Od.” 
Sennholz in Verh. zool.-bot. Ges. Wien, xxxviii. (1888) p. 69. 
S. Zallbruckneri x , ©. Beck, Fl. Nied. Oestr. ii. п. p. 964 (1893). 
The above short description does not convey much information as to the 
exact position of this hybrid, but, the calyx being described as green, while 
in XS. Wettsteinii it is described as purplish, it may be inferred that 
xS. Zahlbruckneri = S. officinale а. ochroleucum x S. tuberosum. If this 
inference is correct, a plant gathered by the writer near St. Jean de Luz, 
France, in 1898, may be placed here. This has the habit of S. tuberosum, 
but the partially decurrent leaves, the hispidity of the inflorescence and the 
more numerous flowers, suggest the influence of S. officinale. The following 
is a description of the French plant : — 
Caulis apice bifidus, anguste alatus, hispidus. Folia hispida, inferiora: 
oblongo-elliptica, acuta, in petiolum brevem attenuata, superiora ovato- 
lanceolata, acuminata, sessilia, decurrentia. —Kachis pedicelli calyxque dense 
hispidi, pilis eis S. officinalis similibus. Racemi satis multiflori, Calyæ fere 
ad basin in lacinias subulato-lanceolatas acutas puberulas ciliatas fissus.. 
Corolla ochroleuca, calyce duplo longior. Fornices stamina paullo excedentes. 
Anthere filamenta triplo longiores. 
Folia majora 11 em. longa, 3-5 cm. lata; flores 15 mm. longi; calyx 7 mm. 
longus. 
Has. Ascain, S. Jean de Luz, France. 
S. multicaule, Teyber (S. officinale x tuberosum). © Entirely fertile, seeds 
intermediate." 
Teyber in Verh. zool.-bot. Ges. Wien. lviii. (1908) p. 18. “ Im Steinbach- 
thale bei Góstling." 
xS. WErrsTEINIL, Sennholz. (S. officinale B. purpureum x tuberosum.)— 
* Rhizomate breviter incrassato, obliquo, carnoso, nodoso, nigro, postice 
pramorso, antice radicibus secundariis decurrentibus affixo. Саше simplici 
vel superiore subramoso. Foliis breviter decurrentibus, inferioribus radical- 
ibusque ovato-lanceolatis in petiolum sensim contractis, superioribus elliptico- 
lanceolatis, Calycibus subpurpurascentibus. Corollis ochroleucis in lineis 
ex apicibus laciniarum decurrentibus violascentibus.” 
5. Wettsteini, С. Sennholz in Verh. zool.-bot. Ges. Wien, xxxviii. (1888) 
p. 63. 
Has. Lower Austria: Kalksburg, with the parents. 
S. dichroanthum, Teyber, l. c. p. 13. * Im Pulkauthale bei Pulkau.” 
