€ 3646 ) 
MAMMILLARIA TENUIS. TAPER Mam- 
MILLARIA. ; 
KR KKK EE KEE EEE EEE EE EK 
Class and Order. 
Icosanpria Monoeynia. 
( Nat. Ord.—Cacrez. ) 
7 
Generic Character. 
Calycis tubus ovario adherens, lobi 5—6 colorati fructum 
juniorem coronantes. Petala 5—25 a calyce vix distincta, 
eo longiora et cum sepalis in tubum concreta. Stamina 
filiformia pluriserialia. Stylus filiformis. Stigma 3—7- 
fidum radiatum. Bacca levis oblonga. Semina nidulantia. 
Cotyledones minute acuminate.—Suffrutices carnosi subro- 
tundi aut cylindracei, lactescentes aut succo limpido repleti, 
aphylli, tuberculis subconicis mammeformibus spiraliter dis- 
positis, apice spinulas radiantes et tomentum demum deci- 
duum gerentibus obtecti. Flores inter basin mammillarum 
sessiles, sepius im zonam transversam dispositi. Bacca 
obovata edulis, calyce marcescente demum deciduo, coro- 
nata. Pfeiff. 
Specific Character and Synonyms. 
Mammittiaria tenuis ; basi sepe multiplex, cylindracea, ax- 
illis angustis nudis, mammillis ovatis, areola juniorum 
sublanata, aculeis setiformibus 20—25 flavidis radian- 
tibus mammilla paulo longioribus, centralibus nullis. 
Mammittaria tenuis. De Cand. Rev. des Cact. p. 110. 
Mém. p. 4. t. 1. Lindl. Bot. Reg. t. 1523. Prfeiff. 
Enum. Cact. p. 6. 
This is no doubt a variable plant. The specimen to 
which De Canpotte applied the name, though as tall as 
the one here figured, was only five lines in diameter. Of 
the beautiful little group to which this belongs, four kinds 
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