104 
Hypericaceee. Acerineee. 
5. Prominent lines of the stem faint. Ls without trans¬ 
parent dots, or only the upper ones, rather narrowed 
to the base. Seps elliptic, obtuse, or the 2 inner ones 
narrower and rather acute. Pets gold-yellow, spotted 
with black.—Wood edges and cool places, especially in 
the mount.; not common. 7 . . quadrangulum L. 426. 
— Prominent lines of the stem almost winged. Ls half- 
clasping, with numerous transparent dots, but with the 
lateral nerves less anastomosed than in the last. Seps 
lanceolate, acuminate. Pets of a paler yellow and smaller 
than in the last, gen. not spotted.—Ditches; everywhere. 7 
tetrapterum Fr. 427. 
6 (3). Seps with fairly long glandular fringes, terminating 
almost in the shape of a club. Stem with 2 prominent 
lines in the upper part. Ls net-veined, without trans¬ 
parent dots.—Southern Jura (Chasseron to Reculet). 7 
Richeri Vill. 428. 
— Seps shortly ciliate-glandular. Stems cylindric. Ls, at 
least the upper ones, with transparent spots . 7 
7. Seps obovate, very obtuse, bordered with almost sessile 
glands.—Woods, slopes, rare; almost exclusively in the 
northern parts of Switzerland. (Lenzburg, Baden, Rhein- 
felden, Feuerthalen, Wilchingen). 7 pulchrum L. 429. 
— Seps lanceolate, acute, with stipitate glands . 8 
8. PI. glabr. FIs in a dense raceme.—Woods; distrib. 6 
montanum L. 430. 
— PI. hairy. Inflorescence looser and with more numerous 
fls.—As the last. 6 ... hirsutum L. 431. 
OBS. Hybrid: H. quadrangulum-tetrapterum (Wadenschwyl: Burnat.). 
19. Acerineae. 
120. Acer. Maple. VIII, 9. XXII, 10. 
1. Inflorescence forming a long pendant, rather branched, 
raceme. Ls grayish green underneath, dull. Sycamore 
Maple.—Mountain forests; distrib. 4 
Pseudoplatanus L. 432. 
— Inflorescence in a corymb or at last slightly elongated 
into a raceme ....... 2 
2. Ls thin, like paper, the lobes long acuminate, separated 
by rounded incisions, almost of the same colour all 
over and shiny underneath (resembling those of the 
Plane tree). Plane Maple. —As the last; rather earlier 
platanoides L, 433. 
— Ls firmer, with obtuse, or at ail events not long-acu¬ 
minate, lobes ........ 3 
