CONVOLVULACEAE. — PORANA 357 
Western Szech’uan: Tung River valley, near Wa-shan, alt. 100— 
900 m., September, 1908 (No. 3220, type; climber 2.5-5 m. tall, 
flowers beautiful blue). Eastern Szech’uan: without precise locality, 
A. Henry (No. 8866; distributed as Porana? aff. P. grandiflorae 
[= Ipomaea No. 26! of Ind. Fl. Sin.]). Yunnan: Mengtsze, woods, 
alt. 1500-1600 m., A. Henry (Nos. 9229, 9229° partim; large climber, 
lavender flowers). 
Without having seen the fruits of var. lasia (p. 362) I should have taken this 
species for an Ipomaea.! It is somewhat similar to P. grandiflora Wallich, from 
which it differs as indicated in the key, p. 358, especially by the stamens inserted in 
3 rows in the tube and not at the same height. 
To describe this new species correctly I was obliged to look over all the species 
of Porana that have been described, and have prepared the following short synopsis 
of oa adding descriptions of three new species and a variety collected by Henry 
in Yunnan. 
CLAVIS SPECIERUM GENERIS PORANAE? 
Ovaria ovulis 4 instructa; stigmata plus minusve globoso-capitata, pleraque latiora 
quam longa; stamina versus basim corollae fere eadem altitudine inserta 
filamentis liberis aequilongis v. inaequalibus quam antheras semper longiori- 
bus. Corolla plus minusve campanulata . . . . Subgen. 1. EUPORANA. 
Sepala omnia in flore aequalia. i 
Stamina inaequalia, tria longiora corollam aequilonga v. superantia, dua 
breviora in tubo inclusa. : 
Stylus ovario 4—5-plo longior, apice bipartitus; discus nullus; sepala in 
flore satis lata, oblongo-elliptica, in fructu omnia amplificata. 
1. P. volubilis. 
, This Ipomaea is said by Hemsley to be “I. coccinea simillima sed sepalis 
puberulis exapiculatis "; it apparently has nothing to do with our plant. 
* I do not know P. Esquirolii Léveillé (in Fedde, Rep. Spec. Nov. IX. 444 [1911], 
of which the author gives only the following short description: “ Affinis P. pani- 
culatae Roxb. a quo tamen differt sequentibus notis; planta tota villosa subtus in 
foliis et floribus tantum rufo-tomentosa; petioli 3-5 em. longi, sepala lanceolata 
obtusa; flores coerulei" Collected in Kweichou by J. Esquirol (No.976.). 
lhave not been able to see the descriptions of P. Delavayi, P. Di d 
and P. Mairei published by Gagnepain in Lecomte's Notulae Systematicae, III. 
fasc. 5, as no parts of this publication have been received here since 1913. Also 
fascicle 3 of Lec omte, Fl. Gén. Indo-Chine, vol. IV., has not been received; this 
contains Convolvulaceae by Gagnepain & Courchet with 3 species of Porana of 
which P. spectabilis Kurz is figured. I unfortunately did not know of these 
Publications until after this paper was in type. 
