OLEACEAE. — SYRINGA 299 
yunnanensis, but in that species the leaves are much paler, rather whitish beneath, 
and the inflorescence is finely pilose. S. verrucosa and S. yunnanensis require 
further study. 
Syringa tetanoloba Schneider, n. sp. 
Frutex ad 4-metralis; ramuli juniores glaberrimi, fusco-brunnei, 
lenticellis minimis flavis sparse obtecti; gemmae glabrae, perulis 
breviter acuminatis. Folia ramorum floriferorum e basi subacuta lan- 
ceolata, apicem versus acuta v. subacuminata, circiter 8-9 cm. longa, 
3-3.5 em. lata, supra viridia, glabra, costa media incisa, subtus pallidiora, 
basin versus ad costam barbata, margine minute ciliato-denticulata 
scabra; petioli 10-14 mm. longi, tantum supra pilosi. Inflorescentiae 
juniores (evolutas non vidi) fere glaberrimae, purpurascentes; flores 
albo violacei?; pedicelli 1-2 mm. longi, plerumque glaberrimi; calyx 
circiter 2 mm. longus, glaberrimus, margine truncatus v. subdenticu- 
latus; tubus corollae 8-9(-10) mm. longus, laciniae 3-6 mm. longae, 
angusto-lanceolatae, obtusiusculae, post anthesin explanatae (an 
reflexae?). Fructus ignotus. 
Western Szech'uan: toward Sungpan, thickets, alt. 3600—4000 
m., August 1910 (No. 4569). 
Though the specimen is rather meagre, this form can be readily distinguished 
from S. Sweginzowii Koehne & Lingelsheim and from all the other species of this 
group by the extremely long lobes of the corolla. 
Syringa Rehderiana Schneider, n. sp. 
Frutex ad 6-metralis ut videtur robustus; ramuli juniores vetustiores- 
que dense cano-tomentelli. Folia ramorum sterilium e basi rotundata 
late elliptica, apice breviter acuta v.subacuminata, supra intense viridia, 
laxe puberula, subtus cinerea, distinctius sed haud dense pubescentia, 
praesertim ad nervos barbata, margine ciliata, 8-10 cm. longa, 3.5-5 
em. lata, ramulorum floriferum ut videtur plus minus lanceolata; 
petioli breves, 6-10 mm. longi, hirsuti. Inflorescentia magna, ad 
17 em. longa et 14 em. lata, cano-tomentella v. breve hirsuta; flores 
albi; pedicelli subhirsuti, calycibus tantum infra mediam pilosis mar- 
gine truncatis vix denticulatis 1-1.5 mm. longis breviores; tubus 
corollae circiter 10 mm. longus, apicem versus vix dilatatus; laciniae 
eorollae post anthesin explanatae et reflexae, circa 2 mm. longae, ovato- 
obtusae; antherae superiori parte tubi insertae, sed faucem corollae 
haud attingentes. Fructus ignotus. 
Western Szech'uan: northeast of Tachien-lu, thickets, alt. 3600— 
4000 m., July 1908 (No. 1273"; in Herb. Arnold Arboretum). 
