3 Haworthia. | LILIACEZ (Baker). 833 
oblong-trigonous, chartaceous, loculicidally 3-valved. Seeds com- 
pressed, acutely angled ; testa brown, membranous ; albumen fleshy ; 
embryo axile, 
Leafy stem short or elongated; leaves short, thick, fleshy, generally multi- 
farious, often tubercled, sometimes toothed or ciliated on the edges and keel; 
flowers small, whitish, ribbed with green or reddish-brown, arranged in simple or 
panicled racemes ; pedicels short, ascending; bracts small. 
Distare. A single species in Angola. 
SERies 1. Leafy stem elongated. 
1. TriquetRe. Leaves regularly trifarious, unspotted. 
Leaves $ — thick, the old ones flat on the face : 
Leaves 14-13 in. long seis; bids en, 2a) Meas 
Leaves under aninchlong ... ... ... «+ (2) asperiuscula. 
Leaves } in. thick, all concave on the face ...  .... (3) Viscosa, 
2. Tortuos. Leaves spirally trifarious, rough, with raised tubercles. 
Leaves rough, with small concolorous tubercles ... (4) tortuosa. 
Leaves very rough, with larger white-tipped tubercles... (5) subrigida. 
3. Paprttosz. Leaves multifarious, with raised or immersed spots. 
Tubercles white, prominently raised : 
Leaves 3-4 in. long ... an :e ses feat 0 papillosa. 
Leaves 1-1i in. iene oe a xs ... (7) Reinwardtii. 
Tubercles greenish-white, prominently raised ... ... (8) Cassytha. 
Tubercles whitish, slightly raised : iss 
Leaves 2-24 in. long... =... vse ss Stee =~ (9) COaretata. 
Leaves 14~1} in. long ot REP Tg aay Sree 
Tubercles greenish, immersed ... 9 .. ss» «+» (EL) Peacockii. 
4. Hypripx. Leaves multifarious, unspotted. 
Leaves rough, with raised papille : 
Papille larger, tipped white bee Suayen .. (12) hybrida 
Papille smaller, concolorous ; 
Old leaves red-brown ... 0 4. ev ry rigida, 
Se Old leaves blackish pee ae An 14) nigra. 
eate on the 
back aly, ig cristo eapae hg v. (15) gleuea. 
Series 2. Leafy stem not elongated; leaves multifarious, not ciliated on the 
margin. : 
5. Marcaritirerm. Leaves entire, furnished with raised white tubercles. 
Tubercles of the leaf confluent into horizontal bands : 
Bands contiguous and regular : 
Leaf pa acuminate, 2}-3 in. long ... .. (16) attenuata. 
Leaf less acuminate, 1}-14 in. long ... ' ... (17) fasciata. 
Bands more distinct and less regular —-.- . (18) subfascia 
Tubercles not confinent into bs raed mers : e 
Tubercles large and middle-si not very close: 
Tubercles abundant on both sides of the leaf... (19) margaritifera. 
Tubercles mainly confined to the back of the 
leaf : 
Te bercles contiguous : : 
" Leaf 3-3} fa. Wong sis nee ... (20) semiglabrata. 
Leaf 2-3 in, en au ... (21) subattenuata. 
Tubercles eel, Pee distant “ (33) glabrata. 
Tubercles small, crowded on both sides of the 
leaf 
Tubercles very minute... «. +» (28) Radula, 
