595 EUPHORBIACEAE: 
sed distincte cuneato-angustatis , ima basi acutis, fere 2%,-plo 
longioribus quam latis, majusculis. 
Actinostemon concolor y. genuinus lus. latifolius Müll. 
Arg. in DC. 1. c. p. 1194. 
Actinostemon polymorphus f. Gardneri lus. latifolius 
Müll. Arg. in Linnaea l. c. 
Inter ¢. ellipticum et 9. microphyllum fere medium tenens, sed folia basi 
magis attenuata, Glandulae hypophyllae saepe nullae v. magis a basi 
remotae. 
Habitat in prov. Minas Geraés: Gardner m. 5175 pr. p. 
Var, $. MICROPHYLLUS Müll. Arg., foliis breviuscule 
petiolatis lanceolato-ellipticis utrinque aequaliter et breviuscule 
acutatis v. apice subobtusis, 2—2'/,-plo longioribus quam latis, 
parvulis, obscurius olivaceis. 
Actinostemon polymorphus f. Gardneri lus. microphyllus 
Müll. Arg. in Linnaea l. c. 
Actinostemon concolor y. genuinus lus. microphyllus Müll. 
Arg. in DC. Prodr. XV. 2. p. 1194. 
LixBUs foliorum 3—5 cm. longus, minor quam in reliquis varie- 
tatibus et utrinque brevius acutatus quam in x. genuino et reliquis 
sequentibus. 
Habitat prope Rio de Janeiro: PoM n. 1715, Gardner n. 172, Schott 
n. 4654, Vauthier. 
E 
Var. 1, RIEDELIT Müll. Arg., foliis breviter et crasse petio- 
latis oblongato-rhombeo-elliptieis breviter et obtuse acuminatis, 
basi angustata subacutis, saepissime 2!/,-plo longioribus quam 
latis. 
Forma intermedia inter œ. obovatum et genuinum., FOLIA basi 
angusta non distincte cordata, nec vere acuta sed ima basi breviuscule 
angustata abrupte contracta, 5—7'/, cm. longa, 23—32 mm. lata. 
Habitat prope Rio de Janeiro: Riedel. 
Var, x. GENUINUS Müll. Arg., foliis breviuscule petiolatis 
oblongo- v. lanceolato-ellipticis utrinque plus minusve attenuato- 
acutatis, apice haud mucronulatis, 21/, —3-plo longioribus quam 
latis, medioeribus, subtus basi magis sparse pauciglandulosis, 
Gussonia concolor Spreng. Neue Entdeck. II, 120. 
Gymnanthes concolor Müll. Arg. in Linnaea XXXII. 103. 
ACTINOSTEMON. 596 
PETIOLI 3—4 mm. longi. Limgus foliorum 4—5'/, em? longus, 
15/,—2'/, cm. latus, rigidulus, pallide fuscus. PEDICELLI FRUCTIGERI 
demum 5 em. longi. CAPSULAE globoso-tridymae, 5—7 mm. longae, 
8 mm. latae. SEMINA basi late retusa, sub apice oblique foveolato- 
depressa. 
Habitat in Brasilia orientali: Sello. 
Var. u. GRANDIFOLIUS Müll. Ary. in DC. 1. e., foliis 
longiuscule petiolatis elliptico-lanceolatis v. rarius etiam obovato- 
lanceolatis, basi acute, apice sensim acutissime acuminatis v. 
firme submucronato-acuminatis, cire. 2?/,—3 /,-plo longioribus 
quam latis. 
Actinostemon grandifolius Baill. Etud. yén. Euphorb. 
532, et Rec. d’obs. bot. V. 333. 
Actinostemon polymorphus h. grandifolius Müll. Arq. in 
Linnaea |. c. 
PETIOLI nune 10—11, nunc 7—10 mm. longi. Limgus foliorum 
cire. 10—13 cm. longus, 2'/,—5 cm. latus, viridi-fuscescens v. subviridis, 
Habitat in Brasilia orientali aut meridionali: Sello; in collibus silva- 
ticis prope Rio de Janeiro: Riedel n. 1047 pr. p.; et prope Mandioca: 
Riedel. 
Var. v. MUCRONATUS Müll. Arg. in DC. l. c., foliis sub- 
breviter petiolatis e basi cuneato-angustata elliptico-lanceolatis 
acute et longiuscule acuminatis mucronulatis, ima basi contracta 
subcordatis, circiter 3—3'/,-plo longioribus quam latis. 
Actinostemon polymorphus ¢. mucronatus Müll. Arg. in 
Linnaea l. c. 
FOLIORUM limbus circ. 9 cm. longus. 
Habitat in Brasilia meridionali aut orientali: Sello; et in prov. Mina 
Geraés: Gardner n. 5175 pr. p. 
Var, €. LONGIFOLIUS Müll. Ary. in DC. l c., foliis 
mediocriter petiolatis subspathulato-lanceolatis, apice acute 
acuminatis mucronulatis, basi sensim regulariter angustatis et 
acutis, circiter 3—33/,-plo longioribus quam latis, majusculis, 
Actinostemon polymorphus k. longifolius Müll. Arg. in 
Linnaea l. c. 
LIMBUS foliorum 11— 13 cm. longus 
PETIOLI 11 mm. longi. 
Stillingia concolor Baill. Rec. d’obs. bot. V. 327. 
Actinostemon concolor y. genuinus exclus. lus, Müll. Arg. 
in DC, Prodr. XV. 2. p. 1194. 
Actinostemon polymorphus f. Gardneri lus. angustifolius 
et biallenuatus Müll. Arg. in Linnaea XXXII. 109. 
ARBUSCULA 8—15-pedalis, amoena, ramis densis, ramulis laxis. 
RAMULI tenues, teretes, ultimi compressi. PETIOLI 5—7 mm. longi. 
Limgus foliorum 4!/, —7 cm. longus, cire, 2—3 cm. latus v. subinde 
major, vivus nitidus, siccus opacus, novellorum rubens. 
Habitat prope Bio de Janeiro in collibus umbrosis: Gaudichaud 
n. 1147, Lund n. 255, Luschnath in Blanchet n. 168, Riedel n. 379, Ra- 
ben n, 737, Glaziou n. 111, 1465, 3104, Tweedie n. 77, Martius n. 236. 
Var. A. SELLOWII Müll. Arg. in DC, Prodr. l. c., foliis 
breviter petiolatis elliptico-lanceolatis apice submucronato-acu- 
minatis v. -angustatis basi cuspidiformi-productis et cuneato- 
angustatis, ima basi angusta subcordata abrupte contractis, 
saepius 21/,—23/,-plo longioribus quam latis. 
Actinostemon polymorphus g. Sellowii Müll. Arg. in Lin- 
3—3'/, cm, latus. 
Habitat prope Rio de Janeiro: Weddell n. 227. 
Var. o. ACUMINATUS Müll. Arg., foliis subbreviter petio- 
latis late spathulato-lanceolatis acute acuminatis v. subinde et 
obtusiusculis, junioribus mucronulatis, basi longiuscule euneato- 
angustatis, ima basi angusta abrupte contracta subcordatis, cir- 
citer 3-plo longioribus quam latis. 
Actinostemon polymorphus v. acuminatus Müll. Arg. in 
Lannaea l. c. 
Actinostemon acuminatus Baill. Etud. gen. Euphorb. 532. 
t. 5. fig. 17. 
Actinostemon concolor u. acuminatus Müll. Arg. in DC. 
Prodr. XV. 2. p. 1194 pr. p. 
Prriout 5—8 mm. longi. Limmus foliorum 10 em. longus, cire. 
3'/ cm. latus. — Similis u. grandifolio, sed ambitus foliorum alius. 
Habitat in Brasilia orientali: Sello; in prov. S. Paulo: Burchell 
naea l. c, 
n. 4970. 
