SYNOPSIS OF THE GENUS LONICERA. 49 
Turkestan (Regel! Krassnow, Fetissow). Tibet (Schla- 
gintweit, no. 7020).— Sometimes cultivated as an orna- 
mental shrub (Arnold Arboretum, etc.). 
This variety differs by slender, not spiny branches, longer 
corolla with oblong lobes and the filaments twice as long as 
the anthers; in the type the lobes are ovate and the fila- 
ments about as long as the anthers. 
Sect. 2. ISIKA, DC. emend. 
Isika, Adanson, Fam. Pl. 2:501 (1763), and part of 
his Xylosteum.— Medicus, Phil. Bot. 1:126 (1789).— 
Moench, Meth. Pl. 504 (1794).—Borkhausen, Handb. 
Forstbot. 2: 1681 (1803).— Roehling, Deutschl. Fl. ed. 
2.2:176 (1812). 
Lonicera § Isicae, De Candolle, Prodr. 4 : 336 (1830), 
and part of his Cuphanthae and of his Chamaecerasi, excl. 
LL. angustifolia. 
This section contains about 75 species and is distributed 
almost through the whole range of the genus, but in Asia 
only one species extends southward beyond the Himalayas 
and none occurs in the Malayan Archipelago. The species 
of this section show great difference in their habit, in the 
structure of the winter buds, in foliage, in the size and 
shape of the bracts and bractlets, in the shape of the 
corolla and in other minor characters. Some species seem 
related to Isoxylosteum, others to Coeloxylosteum, while 
still others form clearly defined groups which exhibit no 
close affinity to other Loniceras. 
A. Ovaries 2-loculed, rarely 3-loculed (ovaries then connate and 
bractlets wanting); corolla with subregular limb (except in Z. 
microphylia and L. cerasina). 
B. Corolla with subregular limb or indistinctly 2-lipped; seed small, 
2-4 mm. long. 
C. Bractlets wanting or present but not tightly enclosing the 
ovaries; fruit orange-yellow to scarlet, rarely dark blue; 
corolla pink or purple to yellowish-white. 
3. Subsect. PURPURASCENTES (8p. 9-27). 
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